81696690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:744

約数の個数: 96

約数和(自身を含む): 225628416

約数和(自身を除く): 143931726

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 61, 69, 90, 115, 122, 138, 183, 207, 230, 305, 345, 366, 414, 549, 610, 647, 690, 915, 1035, 1098, 1294, 1403, 1830, 1941, 2070, 2745, 2806, 3235, 3882, 4209, 5490, 5823, 6470, 7015, 8418, 9705, 11646, 12627, 14030, 14881, 19410, 21045, 25254, 29115, 29762, 39467, 42090, 44643, 58230, 63135, 74405, 78934, 89286, 118401, 126270, 133929, 148810, 197335, 223215, 236802, 267858, 355203, 394670, 446430, 592005, 669645, 710406, 907741, 1184010, 1339290, 1776015, 1815482, 2723223, 3552030, 4538705, 5446446, 8169669, 9077410, 13616115, 16339338, 27232230, 40848345, 81696690]

約数ペア:

[(1, 81696690), (2, 40848345), (3, 27232230), (5, 16339338), (6, 13616115), (9, 9077410), (10, 8169669), (15, 5446446), (18, 4538705), (23, 3552030), (30, 2723223), (45, 1815482), (46, 1776015), (61, 1339290), (69, 1184010), (90, 907741), (115, 710406), (122, 669645), (138, 592005), (183, 446430), (207, 394670), (230, 355203), (305, 267858), (345, 236802), (366, 223215), (414, 197335), (549, 148810), (610, 133929), (647, 126270), (690, 118401), (915, 89286), (1035, 78934), (1098, 74405), (1294, 63135), (1403, 58230), (1830, 44643), (1941, 42090), (2070, 39467), (2745, 29762), (2806, 29115), (3235, 25254), (3882, 21045), (4209, 19410), (5490, 14881), (5823, 14030), (6470, 12627), (7015, 11646), (8418, 9705)]