16656920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 47001600

約数和(自身を除く): 30344680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 95, 101, 124, 133, 140, 152, 155, 190, 202, 217, 248, 266, 280, 310, 380, 404, 434, 505, 532, 589, 620, 665, 707, 760, 808, 868, 1010, 1064, 1085, 1178, 1240, 1330, 1414, 1736, 1919, 2020, 2170, 2356, 2660, 2828, 2945, 3131, 3535, 3838, 4040, 4123, 4340, 4712, 5320, 5656, 5890, 6262, 7070, 7676, 8246, 8680, 9595, 11780, 12524, 13433, 14140, 15352, 15655, 16492, 19190, 20615, 21917, 23560, 25048, 26866, 28280, 31310, 32984, 38380, 41230, 43834, 53732, 59489, 62620, 67165, 76760, 82460, 87668, 107464, 109585, 118978, 125240, 134330, 164920, 175336, 219170, 237956, 268660, 297445, 416423, 438340, 475912, 537320, 594890, 832846, 876680, 1189780, 1665692, 2082115, 2379560, 3331384, 4164230, 8328460, 16656920]

約数ペア:

[(1, 16656920), (2, 8328460), (4, 4164230), (5, 3331384), (7, 2379560), (8, 2082115), (10, 1665692), (14, 1189780), (19, 876680), (20, 832846), (28, 594890), (31, 537320), (35, 475912), (38, 438340), (40, 416423), (56, 297445), (62, 268660), (70, 237956), (76, 219170), (95, 175336), (101, 164920), (124, 134330), (133, 125240), (140, 118978), (152, 109585), (155, 107464), (190, 87668), (202, 82460), (217, 76760), (248, 67165), (266, 62620), (280, 59489), (310, 53732), (380, 43834), (404, 41230), (434, 38380), (505, 32984), (532, 31310), (589, 28280), (620, 26866), (665, 25048), (707, 23560), (760, 21917), (808, 20615), (868, 19190), (1010, 16492), (1064, 15655), (1085, 15352), (1178, 14140), (1240, 13433), (1330, 12524), (1414, 11780), (1736, 9595), (1919, 8680), (2020, 8246), (2170, 7676), (2356, 7070), (2660, 6262), (2828, 5890), (2945, 5656), (3131, 5320), (3535, 4712), (3838, 4340), (4040, 4123)]