18973430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 40919040

約数和(自身を除く): 21945610

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 73, 79, 94, 146, 158, 235, 329, 365, 395, 470, 511, 553, 658, 730, 790, 1022, 1106, 1645, 2555, 2765, 3290, 3431, 3713, 5110, 5530, 5767, 6862, 7426, 11534, 17155, 18565, 24017, 25991, 28835, 34310, 37130, 40369, 48034, 51982, 57670, 80738, 120085, 129955, 201845, 240170, 259910, 271049, 403690, 542098, 1355245, 1897343, 2710490, 3794686, 9486715, 18973430]

約数ペア:

[(1, 18973430), (2, 9486715), (5, 3794686), (7, 2710490), (10, 1897343), (14, 1355245), (35, 542098), (47, 403690), (70, 271049), (73, 259910), (79, 240170), (94, 201845), (146, 129955), (158, 120085), (235, 80738), (329, 57670), (365, 51982), (395, 48034), (470, 40369), (511, 37130), (553, 34310), (658, 28835), (730, 25991), (790, 24017), (1022, 18565), (1106, 17155), (1645, 11534), (2555, 7426), (2765, 6862), (3290, 5767), (3431, 5530), (3713, 5110)]