252840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1$

素因数の和:71

約数の個数: 96

約数和(自身を含む): 902880

約数和(自身を除く): 650040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 49, 56, 60, 70, 84, 86, 98, 105, 120, 129, 140, 147, 168, 172, 196, 210, 215, 245, 258, 280, 294, 301, 344, 392, 420, 430, 490, 516, 588, 602, 645, 735, 840, 860, 903, 980, 1032, 1176, 1204, 1290, 1470, 1505, 1720, 1806, 1960, 2107, 2408, 2580, 2940, 3010, 3612, 4214, 4515, 5160, 5880, 6020, 6321, 7224, 8428, 9030, 10535, 12040, 12642, 16856, 18060, 21070, 25284, 31605, 36120, 42140, 50568, 63210, 84280, 126420, 252840]

約数ペア:

[(1, 252840), (2, 126420), (3, 84280), (4, 63210), (5, 50568), (6, 42140), (7, 36120), (8, 31605), (10, 25284), (12, 21070), (14, 18060), (15, 16856), (20, 12642), (21, 12040), (24, 10535), (28, 9030), (30, 8428), (35, 7224), (40, 6321), (42, 6020), (43, 5880), (49, 5160), (56, 4515), (60, 4214), (70, 3612), (84, 3010), (86, 2940), (98, 2580), (105, 2408), (120, 2107), (129, 1960), (140, 1806), (147, 1720), (168, 1505), (172, 1470), (196, 1290), (210, 1204), (215, 1176), (245, 1032), (258, 980), (280, 903), (294, 860), (301, 840), (344, 735), (392, 645), (420, 602), (430, 588), (490, 516)]