291225220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{9257}}^1$

素因数の和:9301

約数の個数: 72

約数和(自身を含む): 724012632

約数和(自身を除く): 432787412

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 1210, 1430, 1573, 2420, 2860, 3146, 6292, 7865, 9257, 15730, 18514, 31460, 37028, 46285, 92570, 101827, 120341, 185140, 203654, 240682, 407308, 481364, 509135, 601705, 1018270, 1120097, 1203410, 1323751, 2036540, 2240194, 2406820, 2647502, 4480388, 5295004, 5600485, 6618755, 11200970, 13237510, 14561261, 22401940, 26475020, 29122522, 58245044, 72806305, 145612610, 291225220]

約数ペア:

[(1, 291225220), (2, 145612610), (4, 72806305), (5, 58245044), (10, 29122522), (11, 26475020), (13, 22401940), (20, 14561261), (22, 13237510), (26, 11200970), (44, 6618755), (52, 5600485), (55, 5295004), (65, 4480388), (110, 2647502), (121, 2406820), (130, 2240194), (143, 2036540), (220, 1323751), (242, 1203410), (260, 1120097), (286, 1018270), (484, 601705), (572, 509135), (605, 481364), (715, 407308), (1210, 240682), (1430, 203654), (1573, 185140), (2420, 120341), (2860, 101827), (3146, 92570), (6292, 46285), (7865, 37028), (9257, 31460), (15730, 18514)]