18204760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 47462400

約数和(自身を除く): 29257640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 823, 1106, 1580, 1646, 2212, 2765, 3160, 3292, 4115, 4424, 5530, 5761, 6584, 8230, 11060, 11522, 16460, 22120, 23044, 28805, 32920, 46088, 57610, 65017, 115220, 130034, 230440, 260068, 325085, 455119, 520136, 650170, 910238, 1300340, 1820476, 2275595, 2600680, 3640952, 4551190, 9102380, 18204760]

約数ペア:

[(1, 18204760), (2, 9102380), (4, 4551190), (5, 3640952), (7, 2600680), (8, 2275595), (10, 1820476), (14, 1300340), (20, 910238), (28, 650170), (35, 520136), (40, 455119), (56, 325085), (70, 260068), (79, 230440), (140, 130034), (158, 115220), (280, 65017), (316, 57610), (395, 46088), (553, 32920), (632, 28805), (790, 23044), (823, 22120), (1106, 16460), (1580, 11522), (1646, 11060), (2212, 8230), (2765, 6584), (3160, 5761), (3292, 5530), (4115, 4424)]