78165320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1619}}^1$

素因数の和:1718

約数の個数: 64

約数和(自身を含む): 188956800

約数和(自身を除く): 110791480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 1619, 2414, 2840, 3238, 4828, 6035, 6476, 8095, 9656, 12070, 12952, 16190, 24140, 27523, 32380, 48280, 55046, 64760, 110092, 114949, 137615, 220184, 229898, 275230, 459796, 550460, 574745, 919592, 1100920, 1149490, 1954133, 2298980, 3908266, 4597960, 7816532, 9770665, 15633064, 19541330, 39082660, 78165320]

約数ペア:

[(1, 78165320), (2, 39082660), (4, 19541330), (5, 15633064), (8, 9770665), (10, 7816532), (17, 4597960), (20, 3908266), (34, 2298980), (40, 1954133), (68, 1149490), (71, 1100920), (85, 919592), (136, 574745), (142, 550460), (170, 459796), (284, 275230), (340, 229898), (355, 220184), (568, 137615), (680, 114949), (710, 110092), (1207, 64760), (1420, 55046), (1619, 48280), (2414, 32380), (2840, 27523), (3238, 24140), (4828, 16190), (6035, 12952), (6476, 12070), (8095, 9656)]