156912080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 120

約数和(自身を含む): 408551976

約数和(自身を除く): 251639896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 157, 208, 248, 260, 310, 314, 403, 496, 520, 620, 628, 785, 806, 961, 1040, 1240, 1256, 1570, 1612, 1922, 2015, 2041, 2480, 2512, 3140, 3224, 3844, 4030, 4082, 4805, 4867, 6280, 6448, 7688, 8060, 8164, 9610, 9734, 10205, 12493, 12560, 15376, 16120, 16328, 19220, 19468, 20410, 24335, 24986, 32240, 32656, 38440, 38936, 40820, 48670, 49972, 62465, 63271, 76880, 77872, 81640, 97340, 99944, 124930, 126542, 150877, 163280, 194680, 199888, 249860, 253084, 301754, 316355, 389360, 499720, 506168, 603508, 632710, 754385, 999440, 1012336, 1207016, 1265420, 1508770, 1961401, 2414032, 2530840, 3017540, 3922802, 5061680, 6035080, 7845604, 9807005, 12070160, 15691208, 19614010, 31382416, 39228020, 78456040, 156912080]

約数ペア:

[(1, 156912080), (2, 78456040), (4, 39228020), (5, 31382416), (8, 19614010), (10, 15691208), (13, 12070160), (16, 9807005), (20, 7845604), (26, 6035080), (31, 5061680), (40, 3922802), (52, 3017540), (62, 2530840), (65, 2414032), (80, 1961401), (104, 1508770), (124, 1265420), (130, 1207016), (155, 1012336), (157, 999440), (208, 754385), (248, 632710), (260, 603508), (310, 506168), (314, 499720), (403, 389360), (496, 316355), (520, 301754), (620, 253084), (628, 249860), (785, 199888), (806, 194680), (961, 163280), (1040, 150877), (1240, 126542), (1256, 124930), (1570, 99944), (1612, 97340), (1922, 81640), (2015, 77872), (2041, 76880), (2480, 63271), (2512, 62465), (3140, 49972), (3224, 48670), (3844, 40820), (4030, 38936), (4082, 38440), (4805, 32656), (4867, 32240), (6280, 24986), (6448, 24335), (7688, 20410), (8060, 19468), (8164, 19220), (9610, 16328), (9734, 16120), (10205, 15376), (12493, 12560)]