28163560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 39876440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 83, 85, 136, 166, 170, 332, 340, 415, 499, 664, 680, 830, 998, 1411, 1660, 1996, 2495, 2822, 3320, 3992, 4990, 5644, 7055, 8483, 9980, 11288, 14110, 16966, 19960, 28220, 33932, 41417, 42415, 56440, 67864, 82834, 84830, 165668, 169660, 207085, 331336, 339320, 414170, 704089, 828340, 1408178, 1656680, 2816356, 3520445, 5632712, 7040890, 14081780, 28163560]

約数ペア:

[(1, 28163560), (2, 14081780), (4, 7040890), (5, 5632712), (8, 3520445), (10, 2816356), (17, 1656680), (20, 1408178), (34, 828340), (40, 704089), (68, 414170), (83, 339320), (85, 331336), (136, 207085), (166, 169660), (170, 165668), (332, 84830), (340, 82834), (415, 67864), (499, 56440), (664, 42415), (680, 41417), (830, 33932), (998, 28220), (1411, 19960), (1660, 16966), (1996, 14110), (2495, 11288), (2822, 9980), (3320, 8483), (3992, 7055), (4990, 5644)]