20247945

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 33955200

約数和(自身を除く): 13707255

約数列:

[1, 3, 5, 15, 29, 87, 89, 145, 267, 435, 445, 523, 1335, 1569, 2581, 2615, 7743, 7845, 12905, 15167, 38715, 45501, 46547, 75835, 139641, 227505, 232735, 698205, 1349863, 4049589, 6749315, 20247945]

約数ペア:

[(1, 20247945), (3, 6749315), (5, 4049589), (15, 1349863), (29, 698205), (87, 232735), (89, 227505), (145, 139641), (267, 75835), (435, 46547), (445, 45501), (523, 38715), (1335, 15167), (1569, 12905), (2581, 7845), (2615, 7743)]