249969320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{7649}}^1$

素因数の和:7722

約数の個数: 64

約数和(自身を含む): 605880000

約数和(自身を除く): 355910680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 3268, 4085, 6536, 7649, 8170, 15298, 16340, 30596, 32680, 38245, 61192, 76490, 145331, 152980, 290662, 305960, 328907, 581324, 657814, 726655, 1162648, 1315628, 1453310, 1644535, 2631256, 2906620, 3289070, 5813240, 6249233, 6578140, 12498466, 13156280, 24996932, 31246165, 49993864, 62492330, 124984660, 249969320]

約数ペア:

[(1, 249969320), (2, 124984660), (4, 62492330), (5, 49993864), (8, 31246165), (10, 24996932), (19, 13156280), (20, 12498466), (38, 6578140), (40, 6249233), (43, 5813240), (76, 3289070), (86, 2906620), (95, 2631256), (152, 1644535), (172, 1453310), (190, 1315628), (215, 1162648), (344, 726655), (380, 657814), (430, 581324), (760, 328907), (817, 305960), (860, 290662), (1634, 152980), (1720, 145331), (3268, 76490), (4085, 61192), (6536, 38245), (7649, 32680), (8170, 30596), (15298, 16340)]