100225280

素因数分解:

$2^8\times 5^1\times {\mathrm{78301}}^1$

素因数の和:78322

約数の個数: 36

約数和(自身を含む): 240073932

約数和(自身を除く): 139848652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 78301, 156602, 313204, 391505, 626408, 783010, 1252816, 1566020, 2505632, 3132040, 5011264, 6264080, 10022528, 12528160, 20045056, 25056320, 50112640, 100225280]

約数ペア:

[(1, 100225280), (2, 50112640), (4, 25056320), (5, 20045056), (8, 12528160), (10, 10022528), (16, 6264080), (20, 5011264), (32, 3132040), (40, 2505632), (64, 1566020), (80, 1252816), (128, 783010), (160, 626408), (256, 391505), (320, 313204), (640, 156602), (1280, 78301)]