389753240

素因数分解:

$2^3\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{6011}}^1$

素因数の和:7643

約数の個数: 32

約数和(自身を含む): 877631760

約数和(自身を除く): 487878520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1621, 3242, 6011, 6484, 8105, 12022, 12968, 16210, 24044, 30055, 32420, 48088, 60110, 64840, 120220, 240440, 9743831, 19487662, 38975324, 48719155, 77950648, 97438310, 194876620, 389753240]

約数ペア:

[(1, 389753240), (2, 194876620), (4, 97438310), (5, 77950648), (8, 48719155), (10, 38975324), (20, 19487662), (40, 9743831), (1621, 240440), (3242, 120220), (6011, 64840), (6484, 60110), (8105, 48088), (12022, 32420), (12968, 30055), (16210, 24044)]