77817720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{648481}}^1$

素因数の和:648495

約数の個数: 32

約数和(自身を含む): 233453520

約数和(自身を除く): 155635800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 648481, 1296962, 1945443, 2593924, 3242405, 3890886, 5187848, 6484810, 7781772, 9727215, 12969620, 15563544, 19454430, 25939240, 38908860, 77817720]

約数ペア:

[(1, 77817720), (2, 38908860), (3, 25939240), (4, 19454430), (5, 15563544), (6, 12969620), (8, 9727215), (10, 7781772), (12, 6484810), (15, 5187848), (20, 3890886), (24, 3242405), (30, 2593924), (40, 1945443), (60, 1296962), (120, 648481)]