12646640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{547}}^1$

素因数の和:594

約数の個数: 60

約数和(自身を含む): 31291896

約数和(自身を除く): 18645256

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 547, 578, 680, 1094, 1156, 1360, 1445, 2188, 2312, 2735, 2890, 4376, 4624, 5470, 5780, 8752, 9299, 10940, 11560, 18598, 21880, 23120, 37196, 43760, 46495, 74392, 92990, 148784, 158083, 185980, 316166, 371960, 632332, 743920, 790415, 1264664, 1580830, 2529328, 3161660, 6323320, 12646640]

約数ペア:

[(1, 12646640), (2, 6323320), (4, 3161660), (5, 2529328), (8, 1580830), (10, 1264664), (16, 790415), (17, 743920), (20, 632332), (34, 371960), (40, 316166), (68, 185980), (80, 158083), (85, 148784), (136, 92990), (170, 74392), (272, 46495), (289, 43760), (340, 37196), (547, 23120), (578, 21880), (680, 18598), (1094, 11560), (1156, 10940), (1360, 9299), (1445, 8752), (2188, 5780), (2312, 5470), (2735, 4624), (2890, 4376)]