642420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 2018016

約数和(自身を除く): 1375596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 83, 86, 90, 129, 166, 172, 180, 215, 249, 258, 332, 387, 415, 430, 498, 516, 645, 747, 774, 830, 860, 996, 1245, 1290, 1494, 1548, 1660, 1935, 2490, 2580, 2988, 3569, 3735, 3870, 4980, 7138, 7470, 7740, 10707, 14276, 14940, 17845, 21414, 32121, 35690, 42828, 53535, 64242, 71380, 107070, 128484, 160605, 214140, 321210, 642420]

約数ペア:

[(1, 642420), (2, 321210), (3, 214140), (4, 160605), (5, 128484), (6, 107070), (9, 71380), (10, 64242), (12, 53535), (15, 42828), (18, 35690), (20, 32121), (30, 21414), (36, 17845), (43, 14940), (45, 14276), (60, 10707), (83, 7740), (86, 7470), (90, 7138), (129, 4980), (166, 3870), (172, 3735), (180, 3569), (215, 2988), (249, 2580), (258, 2490), (332, 1935), (387, 1660), (415, 1548), (430, 1494), (498, 1290), (516, 1245), (645, 996), (747, 860), (774, 830)]