19900440

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:226

約数の個数: 192

約数和(自身を含む): 75816000

約数和(自身を除く): 55915560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 53, 56, 60, 63, 70, 72, 84, 90, 105, 106, 120, 126, 140, 149, 159, 168, 180, 210, 212, 252, 265, 280, 298, 315, 318, 360, 371, 420, 424, 447, 477, 504, 530, 596, 630, 636, 742, 745, 795, 840, 894, 954, 1043, 1060, 1113, 1192, 1260, 1272, 1341, 1484, 1490, 1590, 1788, 1855, 1908, 2086, 2120, 2226, 2235, 2385, 2520, 2682, 2968, 2980, 3129, 3180, 3339, 3576, 3710, 3816, 4172, 4452, 4470, 4770, 5215, 5364, 5565, 5960, 6258, 6360, 6678, 6705, 7420, 7897, 8344, 8904, 8940, 9387, 9540, 10430, 10728, 11130, 12516, 13356, 13410, 14840, 15645, 15794, 16695, 17880, 18774, 19080, 20860, 22260, 23691, 25032, 26712, 26820, 31290, 31588, 33390, 37548, 39485, 41720, 44520, 46935, 47382, 53640, 55279, 62580, 63176, 66780, 71073, 75096, 78970, 93870, 94764, 110558, 118455, 125160, 133560, 142146, 157940, 165837, 187740, 189528, 221116, 236910, 276395, 284292, 315880, 331674, 355365, 375480, 442232, 473820, 497511, 552790, 568584, 663348, 710730, 829185, 947640, 995022, 1105580, 1326696, 1421460, 1658370, 1990044, 2211160, 2487555, 2842920, 3316740, 3980088, 4975110, 6633480, 9950220, 19900440]

約数ペア:

[(1, 19900440), (2, 9950220), (3, 6633480), (4, 4975110), (5, 3980088), (6, 3316740), (7, 2842920), (8, 2487555), (9, 2211160), (10, 1990044), (12, 1658370), (14, 1421460), (15, 1326696), (18, 1105580), (20, 995022), (21, 947640), (24, 829185), (28, 710730), (30, 663348), (35, 568584), (36, 552790), (40, 497511), (42, 473820), (45, 442232), (53, 375480), (56, 355365), (60, 331674), (63, 315880), (70, 284292), (72, 276395), (84, 236910), (90, 221116), (105, 189528), (106, 187740), (120, 165837), (126, 157940), (140, 142146), (149, 133560), (159, 125160), (168, 118455), (180, 110558), (210, 94764), (212, 93870), (252, 78970), (265, 75096), (280, 71073), (298, 66780), (315, 63176), (318, 62580), (360, 55279), (371, 53640), (420, 47382), (424, 46935), (447, 44520), (477, 41720), (504, 39485), (530, 37548), (596, 33390), (630, 31588), (636, 31290), (742, 26820), (745, 26712), (795, 25032), (840, 23691), (894, 22260), (954, 20860), (1043, 19080), (1060, 18774), (1113, 17880), (1192, 16695), (1260, 15794), (1272, 15645), (1341, 14840), (1484, 13410), (1490, 13356), (1590, 12516), (1788, 11130), (1855, 10728), (1908, 10430), (2086, 9540), (2120, 9387), (2226, 8940), (2235, 8904), (2385, 8344), (2520, 7897), (2682, 7420), (2968, 6705), (2980, 6678), (3129, 6360), (3180, 6258), (3339, 5960), (3576, 5565), (3710, 5364), (3816, 5215), (4172, 4770), (4452, 4470)]