31894940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 84672000

約数和(自身を除く): 52777060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 139, 140, 149, 154, 220, 278, 298, 308, 385, 556, 596, 695, 745, 770, 973, 1043, 1390, 1490, 1529, 1540, 1639, 1946, 2086, 2780, 2980, 3058, 3278, 3892, 4172, 4865, 5215, 6116, 6556, 7645, 8195, 9730, 10430, 10703, 11473, 15290, 16390, 19460, 20711, 20860, 21406, 22946, 30580, 32780, 41422, 42812, 45892, 53515, 57365, 82844, 103555, 107030, 114730, 144977, 207110, 214060, 227821, 229460, 289954, 414220, 455642, 579908, 724885, 911284, 1139105, 1449770, 1594747, 2278210, 2899540, 3189494, 4556420, 6378988, 7973735, 15947470, 31894940]

約数ペア:

[(1, 31894940), (2, 15947470), (4, 7973735), (5, 6378988), (7, 4556420), (10, 3189494), (11, 2899540), (14, 2278210), (20, 1594747), (22, 1449770), (28, 1139105), (35, 911284), (44, 724885), (55, 579908), (70, 455642), (77, 414220), (110, 289954), (139, 229460), (140, 227821), (149, 214060), (154, 207110), (220, 144977), (278, 114730), (298, 107030), (308, 103555), (385, 82844), (556, 57365), (596, 53515), (695, 45892), (745, 42812), (770, 41422), (973, 32780), (1043, 30580), (1390, 22946), (1490, 21406), (1529, 20860), (1540, 20711), (1639, 19460), (1946, 16390), (2086, 15290), (2780, 11473), (2980, 10703), (3058, 10430), (3278, 9730), (3892, 8195), (4172, 7645), (4865, 6556), (5215, 6116)]