161957640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:272

約数の個数: 256

約数和(自身を含む): 574801920

約数和(自身を除く): 412844280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 31, 34, 39, 40, 51, 52, 60, 62, 65, 68, 78, 85, 93, 102, 104, 120, 124, 130, 136, 155, 156, 170, 186, 195, 197, 204, 221, 248, 255, 260, 310, 312, 340, 372, 390, 394, 403, 408, 442, 465, 510, 520, 527, 591, 620, 663, 680, 744, 780, 788, 806, 884, 930, 985, 1020, 1054, 1105, 1182, 1209, 1240, 1326, 1560, 1576, 1581, 1612, 1768, 1860, 1970, 2015, 2040, 2108, 2210, 2364, 2418, 2561, 2635, 2652, 2955, 3162, 3224, 3315, 3349, 3720, 3940, 4030, 4216, 4420, 4728, 4836, 5122, 5270, 5304, 5910, 6045, 6107, 6324, 6630, 6698, 6851, 7683, 7880, 7905, 8060, 8840, 9672, 10047, 10244, 10540, 11820, 12090, 12214, 12648, 12805, 13260, 13396, 13702, 15366, 15810, 16120, 16745, 18321, 20094, 20488, 20553, 21080, 23640, 24180, 24428, 25610, 26520, 26792, 27404, 30535, 30732, 31620, 33490, 34255, 36642, 38415, 40188, 41106, 43537, 48360, 48856, 50235, 51220, 54808, 61070, 61464, 63240, 66980, 68510, 73284, 76830, 79391, 80376, 82212, 87074, 91605, 100470, 102440, 102765, 103819, 122140, 130611, 133960, 137020, 146568, 153660, 158782, 164424, 174148, 183210, 200940, 205530, 207638, 217685, 238173, 244280, 261222, 274040, 307320, 311457, 317564, 348296, 366420, 396955, 401880, 411060, 415276, 435370, 476346, 519095, 522444, 622914, 635128, 653055, 732840, 793910, 822120, 830552, 870740, 952692, 1038190, 1044888, 1190865, 1245828, 1306110, 1349647, 1557285, 1587820, 1741480, 1905384, 2076380, 2381730, 2491656, 2612220, 2699294, 3114570, 3175640, 4048941, 4152760, 4763460, 5224440, 5398588, 6229140, 6748235, 8097882, 9526920, 10797176, 12458280, 13496470, 16195764, 20244705, 26992940, 32391528, 40489410, 53985880, 80978820, 161957640]

約数ペア:

[(1, 161957640), (2, 80978820), (3, 53985880), (4, 40489410), (5, 32391528), (6, 26992940), (8, 20244705), (10, 16195764), (12, 13496470), (13, 12458280), (15, 10797176), (17, 9526920), (20, 8097882), (24, 6748235), (26, 6229140), (30, 5398588), (31, 5224440), (34, 4763460), (39, 4152760), (40, 4048941), (51, 3175640), (52, 3114570), (60, 2699294), (62, 2612220), (65, 2491656), (68, 2381730), (78, 2076380), (85, 1905384), (93, 1741480), (102, 1587820), (104, 1557285), (120, 1349647), (124, 1306110), (130, 1245828), (136, 1190865), (155, 1044888), (156, 1038190), (170, 952692), (186, 870740), (195, 830552), (197, 822120), (204, 793910), (221, 732840), (248, 653055), (255, 635128), (260, 622914), (310, 522444), (312, 519095), (340, 476346), (372, 435370), (390, 415276), (394, 411060), (403, 401880), (408, 396955), (442, 366420), (465, 348296), (510, 317564), (520, 311457), (527, 307320), (591, 274040), (620, 261222), (663, 244280), (680, 238173), (744, 217685), (780, 207638), (788, 205530), (806, 200940), (884, 183210), (930, 174148), (985, 164424), (1020, 158782), (1054, 153660), (1105, 146568), (1182, 137020), (1209, 133960), (1240, 130611), (1326, 122140), (1560, 103819), (1576, 102765), (1581, 102440), (1612, 100470), (1768, 91605), (1860, 87074), (1970, 82212), (2015, 80376), (2040, 79391), (2108, 76830), (2210, 73284), (2364, 68510), (2418, 66980), (2561, 63240), (2635, 61464), (2652, 61070), (2955, 54808), (3162, 51220), (3224, 50235), (3315, 48856), (3349, 48360), (3720, 43537), (3940, 41106), (4030, 40188), (4216, 38415), (4420, 36642), (4728, 34255), (4836, 33490), (5122, 31620), (5270, 30732), (5304, 30535), (5910, 27404), (6045, 26792), (6107, 26520), (6324, 25610), (6630, 24428), (6698, 24180), (6851, 23640), (7683, 21080), (7880, 20553), (7905, 20488), (8060, 20094), (8840, 18321), (9672, 16745), (10047, 16120), (10244, 15810), (10540, 15366), (11820, 13702), (12090, 13396), (12214, 13260), (12648, 12805)]