510688780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:348

約数の個数: 144

約数和(自身を含む): 1319189760

約数和(自身を除く): 808500980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 139, 140, 161, 163, 196, 230, 245, 278, 322, 326, 460, 490, 556, 644, 652, 695, 805, 815, 973, 980, 1127, 1141, 1390, 1610, 1630, 1946, 2254, 2282, 2780, 3197, 3220, 3260, 3749, 3892, 4508, 4564, 4865, 5635, 5705, 6394, 6811, 7498, 7987, 9730, 11270, 11410, 12788, 13622, 14996, 15974, 15985, 18745, 19460, 22379, 22540, 22657, 22820, 26243, 27244, 31948, 31970, 34055, 37490, 39935, 44758, 45314, 52486, 63940, 68110, 74980, 79870, 89516, 90628, 104972, 111895, 113285, 131215, 136220, 156653, 158599, 159740, 183701, 223790, 226570, 262430, 313306, 317198, 367402, 447580, 453140, 521111, 524860, 626612, 634396, 734804, 783265, 792995, 918505, 1042222, 1110193, 1566530, 1585990, 1837010, 2084444, 2220386, 2605555, 3133060, 3171980, 3647777, 3674020, 4440772, 5211110, 5550965, 7295554, 10422220, 11101930, 14591108, 18238885, 22203860, 25534439, 36477770, 51068878, 72955540, 102137756, 127672195, 255344390, 510688780]

約数ペア:

[(1, 510688780), (2, 255344390), (4, 127672195), (5, 102137756), (7, 72955540), (10, 51068878), (14, 36477770), (20, 25534439), (23, 22203860), (28, 18238885), (35, 14591108), (46, 11101930), (49, 10422220), (70, 7295554), (92, 5550965), (98, 5211110), (115, 4440772), (139, 3674020), (140, 3647777), (161, 3171980), (163, 3133060), (196, 2605555), (230, 2220386), (245, 2084444), (278, 1837010), (322, 1585990), (326, 1566530), (460, 1110193), (490, 1042222), (556, 918505), (644, 792995), (652, 783265), (695, 734804), (805, 634396), (815, 626612), (973, 524860), (980, 521111), (1127, 453140), (1141, 447580), (1390, 367402), (1610, 317198), (1630, 313306), (1946, 262430), (2254, 226570), (2282, 223790), (2780, 183701), (3197, 159740), (3220, 158599), (3260, 156653), (3749, 136220), (3892, 131215), (4508, 113285), (4564, 111895), (4865, 104972), (5635, 90628), (5705, 89516), (6394, 79870), (6811, 74980), (7498, 68110), (7987, 63940), (9730, 52486), (11270, 45314), (11410, 44758), (12788, 39935), (13622, 37490), (14996, 34055), (15974, 31970), (15985, 31948), (18745, 27244), (19460, 26243), (22379, 22820), (22540, 22657)]