123740240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2767}}^1$

素因数の和:2836

約数の個数: 80

約数和(自身を含む): 317146368

約数和(自身を除く): 193406128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2767, 2795, 3440, 4472, 5534, 5590, 8944, 11068, 11180, 13835, 22136, 22360, 27670, 35971, 44272, 44720, 55340, 71942, 110680, 118981, 143884, 179855, 221360, 237962, 287768, 359710, 475924, 575536, 594905, 719420, 951848, 1189810, 1438840, 1546753, 1903696, 2379620, 2877680, 3093506, 4759240, 6187012, 7733765, 9518480, 12374024, 15467530, 24748048, 30935060, 61870120, 123740240]

約数ペア:

[(1, 123740240), (2, 61870120), (4, 30935060), (5, 24748048), (8, 15467530), (10, 12374024), (13, 9518480), (16, 7733765), (20, 6187012), (26, 4759240), (40, 3093506), (43, 2877680), (52, 2379620), (65, 1903696), (80, 1546753), (86, 1438840), (104, 1189810), (130, 951848), (172, 719420), (208, 594905), (215, 575536), (260, 475924), (344, 359710), (430, 287768), (520, 237962), (559, 221360), (688, 179855), (860, 143884), (1040, 118981), (1118, 110680), (1720, 71942), (2236, 55340), (2767, 44720), (2795, 44272), (3440, 35971), (4472, 27670), (5534, 22360), (5590, 22136), (8944, 13835), (11068, 11180)]