18301520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13457}}^1$

素因数の和:13487

約数の個数: 40

約数和(自身を含む): 45057384

約数和(自身を除く): 26755864

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13457, 26914, 53828, 67285, 107656, 134570, 215312, 228769, 269140, 457538, 538280, 915076, 1076560, 1143845, 1830152, 2287690, 3660304, 4575380, 9150760, 18301520]

約数ペア:

[(1, 18301520), (2, 9150760), (4, 4575380), (5, 3660304), (8, 2287690), (10, 1830152), (16, 1143845), (17, 1076560), (20, 915076), (34, 538280), (40, 457538), (68, 269140), (80, 228769), (85, 215312), (136, 134570), (170, 107656), (272, 67285), (340, 53828), (680, 26914), (1360, 13457)]