20175783940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{643}}^1$

素因数の和:942

約数の個数: 192

約数和(自身を含む): 50166466560

約数和(自身を除く): 29990682620

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 31, 34, 52, 62, 65, 68, 85, 124, 130, 155, 170, 221, 229, 260, 310, 340, 403, 442, 458, 527, 620, 643, 806, 884, 916, 1054, 1105, 1145, 1286, 1612, 2015, 2108, 2210, 2290, 2572, 2635, 2977, 3215, 3893, 4030, 4420, 4580, 5270, 5954, 6430, 6851, 7099, 7786, 8060, 8359, 10540, 10931, 11908, 12860, 13702, 14198, 14885, 15572, 16718, 19465, 19933, 21862, 27404, 28396, 29770, 33436, 34255, 35495, 38930, 39866, 41795, 43724, 50609, 54655, 59540, 68510, 70990, 77860, 79732, 83590, 92287, 99665, 101218, 109310, 120683, 137020, 141980, 142103, 147247, 167180, 184574, 199330, 202436, 218620, 241366, 253045, 259129, 284206, 294494, 338861, 369148, 398660, 461435, 482732, 506090, 518258, 568412, 588988, 603415, 677722, 710515, 736235, 922870, 1012180, 1036516, 1206830, 1295645, 1355444, 1421030, 1472470, 1568879, 1694305, 1845740, 1914211, 2413660, 2503199, 2591290, 2842060, 2944940, 3137758, 3388610, 3828422, 4405193, 4564657, 5006398, 5182580, 6275516, 6777220, 7656844, 7844395, 8810386, 9129314, 9571055, 10012796, 12515995, 15688790, 17620772, 18258628, 19142110, 22025965, 22823285, 25031990, 31377580, 32541587, 38284220, 44051930, 45646570, 50063980, 59340541, 65083174, 77599169, 88103860, 91293140, 118681082, 130166348, 155198338, 162707935, 237362164, 296702705, 310396676, 325415870, 387995845, 593405410, 650831740, 775991690, 1008789197, 1186810820, 1551983380, 2017578394, 4035156788, 5043945985, 10087891970, 20175783940]

約数ペア:

[(1, 20175783940), (2, 10087891970), (4, 5043945985), (5, 4035156788), (10, 2017578394), (13, 1551983380), (17, 1186810820), (20, 1008789197), (26, 775991690), (31, 650831740), (34, 593405410), (52, 387995845), (62, 325415870), (65, 310396676), (68, 296702705), (85, 237362164), (124, 162707935), (130, 155198338), (155, 130166348), (170, 118681082), (221, 91293140), (229, 88103860), (260, 77599169), (310, 65083174), (340, 59340541), (403, 50063980), (442, 45646570), (458, 44051930), (527, 38284220), (620, 32541587), (643, 31377580), (806, 25031990), (884, 22823285), (916, 22025965), (1054, 19142110), (1105, 18258628), (1145, 17620772), (1286, 15688790), (1612, 12515995), (2015, 10012796), (2108, 9571055), (2210, 9129314), (2290, 8810386), (2572, 7844395), (2635, 7656844), (2977, 6777220), (3215, 6275516), (3893, 5182580), (4030, 5006398), (4420, 4564657), (4580, 4405193), (5270, 3828422), (5954, 3388610), (6430, 3137758), (6851, 2944940), (7099, 2842060), (7786, 2591290), (8060, 2503199), (8359, 2413660), (10540, 1914211), (10931, 1845740), (11908, 1694305), (12860, 1568879), (13702, 1472470), (14198, 1421030), (14885, 1355444), (15572, 1295645), (16718, 1206830), (19465, 1036516), (19933, 1012180), (21862, 922870), (27404, 736235), (28396, 710515), (29770, 677722), (33436, 603415), (34255, 588988), (35495, 568412), (38930, 518258), (39866, 506090), (41795, 482732), (43724, 461435), (50609, 398660), (54655, 369148), (59540, 338861), (68510, 294494), (70990, 284206), (77860, 259129), (79732, 253045), (83590, 241366), (92287, 218620), (99665, 202436), (101218, 199330), (109310, 184574), (120683, 167180), (137020, 147247), (141980, 142103)]