19657330

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{521}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 45100800

約数和(自身を除く): 25443470

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 343, 385, 490, 521, 539, 686, 770, 1042, 1078, 1715, 2605, 2695, 3430, 3647, 3773, 5210, 5390, 5731, 7294, 7546, 11462, 18235, 18865, 25529, 28655, 36470, 37730, 40117, 51058, 57310, 80234, 127645, 178703, 200585, 255290, 280819, 357406, 401170, 561638, 893515, 1404095, 1787030, 1965733, 2808190, 3931466, 9828665, 19657330]

約数ペア:

[(1, 19657330), (2, 9828665), (5, 3931466), (7, 2808190), (10, 1965733), (11, 1787030), (14, 1404095), (22, 893515), (35, 561638), (49, 401170), (55, 357406), (70, 280819), (77, 255290), (98, 200585), (110, 178703), (154, 127645), (245, 80234), (343, 57310), (385, 51058), (490, 40117), (521, 37730), (539, 36470), (686, 28655), (770, 25529), (1042, 18865), (1078, 18235), (1715, 11462), (2605, 7546), (2695, 7294), (3430, 5731), (3647, 5390), (3773, 5210)]