320413960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{2467}}^1$

素因数の和:2686

約数の個数: 64

約数和(自身を含む): 767646720

約数和(自身を除く): 447232760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 191, 340, 382, 680, 764, 955, 1528, 1910, 2467, 3247, 3820, 4934, 6494, 7640, 9868, 12335, 12988, 16235, 19736, 24670, 25976, 32470, 41939, 49340, 64940, 83878, 98680, 129880, 167756, 209695, 335512, 419390, 471197, 838780, 942394, 1677560, 1884788, 2355985, 3769576, 4711970, 8010349, 9423940, 16020698, 18847880, 32041396, 40051745, 64082792, 80103490, 160206980, 320413960]

約数ペア:

[(1, 320413960), (2, 160206980), (4, 80103490), (5, 64082792), (8, 40051745), (10, 32041396), (17, 18847880), (20, 16020698), (34, 9423940), (40, 8010349), (68, 4711970), (85, 3769576), (136, 2355985), (170, 1884788), (191, 1677560), (340, 942394), (382, 838780), (680, 471197), (764, 419390), (955, 335512), (1528, 209695), (1910, 167756), (2467, 129880), (3247, 98680), (3820, 83878), (4934, 64940), (6494, 49340), (7640, 41939), (9868, 32470), (12335, 25976), (12988, 24670), (16235, 19736)]