200100400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:383

約数の個数: 120

約数和(自身を含む): 512712720

約数和(自身を除く): 312612320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 113, 152, 190, 200, 226, 233, 304, 380, 400, 452, 466, 475, 565, 760, 904, 932, 950, 1130, 1165, 1520, 1808, 1864, 1900, 2147, 2260, 2330, 2825, 3728, 3800, 4294, 4427, 4520, 4660, 5650, 5825, 7600, 8588, 8854, 9040, 9320, 10735, 11300, 11650, 17176, 17708, 18640, 21470, 22135, 22600, 23300, 26329, 34352, 35416, 42940, 44270, 45200, 46600, 52658, 53675, 70832, 85880, 88540, 93200, 105316, 107350, 110675, 131645, 171760, 177080, 210632, 214700, 221350, 263290, 354160, 421264, 429400, 442700, 500251, 526580, 658225, 858800, 885400, 1000502, 1053160, 1316450, 1770800, 2001004, 2106320, 2501255, 2632900, 4002008, 5002510, 5265800, 8004016, 10005020, 10531600, 12506275, 20010040, 25012550, 40020080, 50025100, 100050200, 200100400]

約数ペア:

[(1, 200100400), (2, 100050200), (4, 50025100), (5, 40020080), (8, 25012550), (10, 20010040), (16, 12506275), (19, 10531600), (20, 10005020), (25, 8004016), (38, 5265800), (40, 5002510), (50, 4002008), (76, 2632900), (80, 2501255), (95, 2106320), (100, 2001004), (113, 1770800), (152, 1316450), (190, 1053160), (200, 1000502), (226, 885400), (233, 858800), (304, 658225), (380, 526580), (400, 500251), (452, 442700), (466, 429400), (475, 421264), (565, 354160), (760, 263290), (904, 221350), (932, 214700), (950, 210632), (1130, 177080), (1165, 171760), (1520, 131645), (1808, 110675), (1864, 107350), (1900, 105316), (2147, 93200), (2260, 88540), (2330, 85880), (2825, 70832), (3728, 53675), (3800, 52658), (4294, 46600), (4427, 45200), (4520, 44270), (4660, 42940), (5650, 35416), (5825, 34352), (7600, 26329), (8588, 23300), (8854, 22600), (9040, 22135), (9320, 21470), (10735, 18640), (11300, 17708), (11650, 17176)]