28581920

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4357}}^1$

素因数の和:4413

約数の個数: 48

約数和(自身を含む): 69187608

約数和(自身を除く): 40605688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 4357, 6560, 8714, 17428, 21785, 34856, 43570, 69712, 87140, 139424, 174280, 178637, 348560, 357274, 697120, 714548, 893185, 1429096, 1786370, 2858192, 3572740, 5716384, 7145480, 14290960, 28581920]

約数ペア:

[(1, 28581920), (2, 14290960), (4, 7145480), (5, 5716384), (8, 3572740), (10, 2858192), (16, 1786370), (20, 1429096), (32, 893185), (40, 714548), (41, 697120), (80, 357274), (82, 348560), (160, 178637), (164, 174280), (205, 139424), (328, 87140), (410, 69712), (656, 43570), (820, 34856), (1312, 21785), (1640, 17428), (3280, 8714), (4357, 6560)]