639350820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:520

約数の個数: 240

約数和(自身を含む): 2146636800

約数和(自身を除く): 1507285980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 31, 36, 45, 54, 58, 60, 62, 81, 87, 90, 93, 108, 116, 124, 135, 145, 155, 162, 174, 180, 186, 261, 270, 279, 290, 310, 324, 348, 372, 405, 435, 439, 465, 522, 540, 558, 580, 620, 783, 810, 837, 870, 878, 899, 930, 1044, 1116, 1305, 1317, 1395, 1566, 1620, 1674, 1740, 1756, 1798, 1860, 2195, 2349, 2511, 2610, 2634, 2697, 2790, 3132, 3348, 3596, 3915, 3951, 4185, 4390, 4495, 4698, 5022, 5220, 5268, 5394, 5580, 6585, 7830, 7902, 8091, 8370, 8780, 8990, 9396, 10044, 10788, 11745, 11853, 12555, 12731, 13170, 13485, 13609, 15660, 15804, 16182, 16740, 17980, 19755, 23490, 23706, 24273, 25110, 25462, 26340, 26970, 27218, 32364, 35559, 38193, 39510, 40455, 40827, 46980, 47412, 48546, 50220, 50924, 53940, 54436, 59265, 63655, 68045, 71118, 72819, 76386, 79020, 80910, 81654, 97092, 114579, 118530, 121365, 122481, 127310, 136090, 142236, 145638, 152772, 161820, 163308, 177795, 190965, 204135, 229158, 237060, 242730, 244962, 254620, 272180, 291276, 343737, 355590, 364095, 367443, 381930, 394661, 408270, 458316, 485460, 489924, 572895, 612405, 687474, 711180, 728190, 734886, 763860, 789322, 816540, 1031211, 1102329, 1145790, 1183983, 1224810, 1374948, 1456380, 1469772, 1578644, 1718685, 1837215, 1973305, 2062422, 2204658, 2291580, 2367966, 2449620, 3437370, 3551949, 3674430, 3946610, 4124844, 4409316, 4735932, 5156055, 5511645, 5919915, 6874740, 7103898, 7348860, 7893220, 10312110, 10655847, 11023290, 11839830, 14207796, 17759745, 20624220, 21311694, 22046580, 23679660, 31967541, 35519490, 42623388, 53279235, 63935082, 71038980, 106558470, 127870164, 159837705, 213116940, 319675410, 639350820]

約数ペア:

[(1, 639350820), (2, 319675410), (3, 213116940), (4, 159837705), (5, 127870164), (6, 106558470), (9, 71038980), (10, 63935082), (12, 53279235), (15, 42623388), (18, 35519490), (20, 31967541), (27, 23679660), (29, 22046580), (30, 21311694), (31, 20624220), (36, 17759745), (45, 14207796), (54, 11839830), (58, 11023290), (60, 10655847), (62, 10312110), (81, 7893220), (87, 7348860), (90, 7103898), (93, 6874740), (108, 5919915), (116, 5511645), (124, 5156055), (135, 4735932), (145, 4409316), (155, 4124844), (162, 3946610), (174, 3674430), (180, 3551949), (186, 3437370), (261, 2449620), (270, 2367966), (279, 2291580), (290, 2204658), (310, 2062422), (324, 1973305), (348, 1837215), (372, 1718685), (405, 1578644), (435, 1469772), (439, 1456380), (465, 1374948), (522, 1224810), (540, 1183983), (558, 1145790), (580, 1102329), (620, 1031211), (783, 816540), (810, 789322), (837, 763860), (870, 734886), (878, 728190), (899, 711180), (930, 687474), (1044, 612405), (1116, 572895), (1305, 489924), (1317, 485460), (1395, 458316), (1566, 408270), (1620, 394661), (1674, 381930), (1740, 367443), (1756, 364095), (1798, 355590), (1860, 343737), (2195, 291276), (2349, 272180), (2511, 254620), (2610, 244962), (2634, 242730), (2697, 237060), (2790, 229158), (3132, 204135), (3348, 190965), (3596, 177795), (3915, 163308), (3951, 161820), (4185, 152772), (4390, 145638), (4495, 142236), (4698, 136090), (5022, 127310), (5220, 122481), (5268, 121365), (5394, 118530), (5580, 114579), (6585, 97092), (7830, 81654), (7902, 80910), (8091, 79020), (8370, 76386), (8780, 72819), (8990, 71118), (9396, 68045), (10044, 63655), (10788, 59265), (11745, 54436), (11853, 53940), (12555, 50924), (12731, 50220), (13170, 48546), (13485, 47412), (13609, 46980), (15660, 40827), (15804, 40455), (16182, 39510), (16740, 38193), (17980, 35559), (19755, 32364), (23490, 27218), (23706, 26970), (24273, 26340), (25110, 25462)]