18772400

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:750

約数の個数: 60

約数和(自身を含む): 45805104

約数和(自身を除く): 27032704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 568, 661, 710, 1136, 1322, 1420, 1775, 2644, 2840, 3305, 3550, 5288, 5680, 6610, 7100, 10576, 13220, 14200, 16525, 26440, 28400, 33050, 46931, 52880, 66100, 93862, 132200, 187724, 234655, 264400, 375448, 469310, 750896, 938620, 1173275, 1877240, 2346550, 3754480, 4693100, 9386200, 18772400]

約数ペア:

[(1, 18772400), (2, 9386200), (4, 4693100), (5, 3754480), (8, 2346550), (10, 1877240), (16, 1173275), (20, 938620), (25, 750896), (40, 469310), (50, 375448), (71, 264400), (80, 234655), (100, 187724), (142, 132200), (200, 93862), (284, 66100), (355, 52880), (400, 46931), (568, 33050), (661, 28400), (710, 26440), (1136, 16525), (1322, 14200), (1420, 13220), (1775, 10576), (2644, 7100), (2840, 6610), (3305, 5680), (3550, 5288)]