18828560

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6361}}^1$

素因数の和:6411

約数の個数: 40

約数和(自身を含む): 44966616

約数和(自身を除く): 26138056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6361, 12722, 25444, 31805, 50888, 63610, 101776, 127220, 235357, 254440, 470714, 508880, 941428, 1176785, 1882856, 2353570, 3765712, 4707140, 9414280, 18828560]

約数ペア:

[(1, 18828560), (2, 9414280), (4, 4707140), (5, 3765712), (8, 2353570), (10, 1882856), (16, 1176785), (20, 941428), (37, 508880), (40, 470714), (74, 254440), (80, 235357), (148, 127220), (185, 101776), (296, 63610), (370, 50888), (592, 31805), (740, 25444), (1480, 12722), (2960, 6361)]