161866540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 376585776

約数和(自身を除く): 214719236

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 211, 220, 242, 317, 422, 484, 605, 634, 844, 1055, 1210, 1268, 1585, 2110, 2321, 2420, 3170, 3487, 4220, 4642, 6340, 6974, 9284, 11605, 13948, 17435, 23210, 25531, 34870, 38357, 46420, 51062, 66887, 69740, 76714, 102124, 127655, 133774, 153428, 191785, 255310, 267548, 334435, 383570, 510620, 668870, 735757, 767140, 1337740, 1471514, 2943028, 3678785, 7357570, 8093327, 14715140, 16186654, 32373308, 40466635, 80933270, 161866540]

約数ペア:

[(1, 161866540), (2, 80933270), (4, 40466635), (5, 32373308), (10, 16186654), (11, 14715140), (20, 8093327), (22, 7357570), (44, 3678785), (55, 2943028), (110, 1471514), (121, 1337740), (211, 767140), (220, 735757), (242, 668870), (317, 510620), (422, 383570), (484, 334435), (605, 267548), (634, 255310), (844, 191785), (1055, 153428), (1210, 133774), (1268, 127655), (1585, 102124), (2110, 76714), (2321, 69740), (2420, 66887), (3170, 51062), (3487, 46420), (4220, 38357), (4642, 34870), (6340, 25531), (6974, 23210), (9284, 17435), (11605, 13948)]