28190120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1213}}^1$

素因数の和:1314

約数の個数: 64

約数和(自身を含む): 73422720

約数和(自身を除く): 45232600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 83, 140, 166, 280, 332, 415, 581, 664, 830, 1162, 1213, 1660, 2324, 2426, 2905, 3320, 4648, 4852, 5810, 6065, 8491, 9704, 11620, 12130, 16982, 23240, 24260, 33964, 42455, 48520, 67928, 84910, 100679, 169820, 201358, 339640, 402716, 503395, 704753, 805432, 1006790, 1409506, 2013580, 2819012, 3523765, 4027160, 5638024, 7047530, 14095060, 28190120]

約数ペア:

[(1, 28190120), (2, 14095060), (4, 7047530), (5, 5638024), (7, 4027160), (8, 3523765), (10, 2819012), (14, 2013580), (20, 1409506), (28, 1006790), (35, 805432), (40, 704753), (56, 503395), (70, 402716), (83, 339640), (140, 201358), (166, 169820), (280, 100679), (332, 84910), (415, 67928), (581, 48520), (664, 42455), (830, 33964), (1162, 24260), (1213, 23240), (1660, 16982), (2324, 12130), (2426, 11620), (2905, 9704), (3320, 8491), (4648, 6065), (4852, 5810)]