28889510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 59270400

約数和(自身を除く): 30380890

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 79, 97, 130, 145, 158, 194, 290, 377, 395, 485, 754, 790, 970, 1027, 1261, 1885, 2054, 2291, 2522, 2813, 3770, 4582, 5135, 5626, 6305, 7663, 10270, 11455, 12610, 14065, 15326, 22910, 28130, 29783, 36569, 38315, 59566, 73138, 76630, 99619, 148915, 182845, 199238, 222227, 297830, 365690, 444454, 498095, 996190, 1111135, 2222270, 2888951, 5777902, 14444755, 28889510]

約数ペア:

[(1, 28889510), (2, 14444755), (5, 5777902), (10, 2888951), (13, 2222270), (26, 1111135), (29, 996190), (58, 498095), (65, 444454), (79, 365690), (97, 297830), (130, 222227), (145, 199238), (158, 182845), (194, 148915), (290, 99619), (377, 76630), (395, 73138), (485, 59566), (754, 38315), (790, 36569), (970, 29783), (1027, 28130), (1261, 22910), (1885, 15326), (2054, 14065), (2291, 12610), (2522, 11455), (2813, 10270), (3770, 7663), (4582, 6305), (5135, 5626)]