21200600

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1493}}^1$

素因数の和:1580

約数の個数: 48

約数和(自身を含む): 50019120

約数和(自身を除く): 28818520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1493, 1775, 2840, 2986, 3550, 5972, 7100, 7465, 11944, 14200, 14930, 29860, 37325, 59720, 74650, 106003, 149300, 212006, 298600, 424012, 530015, 848024, 1060030, 2120060, 2650075, 4240120, 5300150, 10600300, 21200600]

約数ペア:

[(1, 21200600), (2, 10600300), (4, 5300150), (5, 4240120), (8, 2650075), (10, 2120060), (20, 1060030), (25, 848024), (40, 530015), (50, 424012), (71, 298600), (100, 212006), (142, 149300), (200, 106003), (284, 74650), (355, 59720), (568, 37325), (710, 29860), (1420, 14930), (1493, 14200), (1775, 11944), (2840, 7465), (2986, 7100), (3550, 5972)]