20949200

素因数分解:

$2^4\times 5^2\times {\mathrm{83}}^1\times {\mathrm{631}}^1$

素因数の和:732

約数の個数: 60

約数和(自身を含む): 51017568

約数和(自身を除く): 30068368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 83, 100, 166, 200, 332, 400, 415, 631, 664, 830, 1262, 1328, 1660, 2075, 2524, 3155, 3320, 4150, 5048, 6310, 6640, 8300, 10096, 12620, 15775, 16600, 25240, 31550, 33200, 50480, 52373, 63100, 104746, 126200, 209492, 252400, 261865, 418984, 523730, 837968, 1047460, 1309325, 2094920, 2618650, 4189840, 5237300, 10474600, 20949200]

約数ペア:

[(1, 20949200), (2, 10474600), (4, 5237300), (5, 4189840), (8, 2618650), (10, 2094920), (16, 1309325), (20, 1047460), (25, 837968), (40, 523730), (50, 418984), (80, 261865), (83, 252400), (100, 209492), (166, 126200), (200, 104746), (332, 63100), (400, 52373), (415, 50480), (631, 33200), (664, 31550), (830, 25240), (1262, 16600), (1328, 15775), (1660, 12620), (2075, 10096), (2524, 8300), (3155, 6640), (3320, 6310), (4150, 5048)]