123789210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:823

約数の個数: 64

約数和(自身を含む): 305130240

約数和(自身を除く): 181341030

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 89, 142, 178, 213, 267, 355, 426, 445, 534, 653, 710, 890, 1065, 1306, 1335, 1959, 2130, 2670, 3265, 3918, 6319, 6530, 9795, 12638, 18957, 19590, 31595, 37914, 46363, 58117, 63190, 92726, 94785, 116234, 139089, 174351, 189570, 231815, 278178, 290585, 348702, 463630, 581170, 695445, 871755, 1390890, 1743510, 4126307, 8252614, 12378921, 20631535, 24757842, 41263070, 61894605, 123789210]

約数ペア:

[(1, 123789210), (2, 61894605), (3, 41263070), (5, 24757842), (6, 20631535), (10, 12378921), (15, 8252614), (30, 4126307), (71, 1743510), (89, 1390890), (142, 871755), (178, 695445), (213, 581170), (267, 463630), (355, 348702), (426, 290585), (445, 278178), (534, 231815), (653, 189570), (710, 174351), (890, 139089), (1065, 116234), (1306, 94785), (1335, 92726), (1959, 63190), (2130, 58117), (2670, 46363), (3265, 37914), (3918, 31595), (6319, 19590), (6530, 18957), (9795, 12638)]