64985980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{48497}}^1$

素因数の和:48573

約数の個数: 24

約数和(自身を含む): 138510288

約数和(自身を除く): 73524308

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 48497, 96994, 193988, 242485, 484970, 969940, 3249299, 6498598, 12997196, 16246495, 32492990, 64985980]

約数ペア:

[(1, 64985980), (2, 32492990), (4, 16246495), (5, 12997196), (10, 6498598), (20, 3249299), (67, 969940), (134, 484970), (268, 242485), (335, 193988), (670, 96994), (1340, 48497)]