64670980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{79}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 152530560

約数和(自身を除く): 87859580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 79, 110, 122, 158, 220, 244, 305, 316, 395, 610, 671, 790, 869, 1220, 1342, 1580, 1738, 2684, 3355, 3476, 3721, 4345, 4819, 6710, 7442, 8690, 9638, 13420, 14884, 17380, 18605, 19276, 24095, 37210, 40931, 48190, 53009, 74420, 81862, 96380, 106018, 163724, 204655, 212036, 265045, 293959, 409310, 530090, 587918, 818620, 1060180, 1175836, 1469795, 2939590, 3233549, 5879180, 6467098, 12934196, 16167745, 32335490, 64670980]

約数ペア:

[(1, 64670980), (2, 32335490), (4, 16167745), (5, 12934196), (10, 6467098), (11, 5879180), (20, 3233549), (22, 2939590), (44, 1469795), (55, 1175836), (61, 1060180), (79, 818620), (110, 587918), (122, 530090), (158, 409310), (220, 293959), (244, 265045), (305, 212036), (316, 204655), (395, 163724), (610, 106018), (671, 96380), (790, 81862), (869, 74420), (1220, 53009), (1342, 48190), (1580, 40931), (1738, 37210), (2684, 24095), (3355, 19276), (3476, 18605), (3721, 17380), (4345, 14884), (4819, 13420), (6710, 9638), (7442, 8690)]