129374780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2939}}^1$

素因数の和:3050

約数の個数: 48

約数和(自身を含む): 284497920

約数和(自身を除く): 155123140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 2939, 4402, 5878, 8804, 11005, 11756, 14695, 22010, 29390, 44020, 58780, 91109, 182218, 208669, 364436, 417338, 455545, 834676, 911090, 1043345, 1822180, 2086690, 4173380, 6468739, 12937478, 25874956, 32343695, 64687390, 129374780]

約数ペア:

[(1, 129374780), (2, 64687390), (4, 32343695), (5, 25874956), (10, 12937478), (20, 6468739), (31, 4173380), (62, 2086690), (71, 1822180), (124, 1043345), (142, 911090), (155, 834676), (284, 455545), (310, 417338), (355, 364436), (620, 208669), (710, 182218), (1420, 91109), (2201, 58780), (2939, 44020), (4402, 29390), (5878, 22010), (8804, 14695), (11005, 11756)]