821845960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2999}}^1$

素因数の和:3071

約数の個数: 128

約数和(自身を含む): 2177280000

約数和(自身を除く): 1355434040

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 85, 104, 124, 130, 136, 155, 170, 221, 248, 260, 310, 340, 403, 442, 520, 527, 620, 680, 806, 884, 1054, 1105, 1240, 1612, 1768, 2015, 2108, 2210, 2635, 2999, 3224, 4030, 4216, 4420, 5270, 5998, 6851, 8060, 8840, 10540, 11996, 13702, 14995, 16120, 21080, 23992, 27404, 29990, 34255, 38987, 50983, 54808, 59980, 68510, 77974, 92969, 101966, 119960, 137020, 155948, 185938, 194935, 203932, 254915, 274040, 311896, 371876, 389870, 407864, 464845, 509830, 662779, 743752, 779740, 929690, 1019660, 1208597, 1325558, 1559480, 1580473, 1859380, 2039320, 2417194, 2651116, 3160946, 3313895, 3718760, 4834388, 5302232, 6042985, 6321892, 6627790, 7902365, 9668776, 12085970, 12643784, 13255580, 15804730, 20546149, 24171940, 26511160, 31609460, 41092298, 48343880, 63218920, 82184596, 102730745, 164369192, 205461490, 410922980, 821845960]

約数ペア:

[(1, 821845960), (2, 410922980), (4, 205461490), (5, 164369192), (8, 102730745), (10, 82184596), (13, 63218920), (17, 48343880), (20, 41092298), (26, 31609460), (31, 26511160), (34, 24171940), (40, 20546149), (52, 15804730), (62, 13255580), (65, 12643784), (68, 12085970), (85, 9668776), (104, 7902365), (124, 6627790), (130, 6321892), (136, 6042985), (155, 5302232), (170, 4834388), (221, 3718760), (248, 3313895), (260, 3160946), (310, 2651116), (340, 2417194), (403, 2039320), (442, 1859380), (520, 1580473), (527, 1559480), (620, 1325558), (680, 1208597), (806, 1019660), (884, 929690), (1054, 779740), (1105, 743752), (1240, 662779), (1612, 509830), (1768, 464845), (2015, 407864), (2108, 389870), (2210, 371876), (2635, 311896), (2999, 274040), (3224, 254915), (4030, 203932), (4216, 194935), (4420, 185938), (5270, 155948), (5998, 137020), (6851, 119960), (8060, 101966), (8840, 92969), (10540, 77974), (11996, 68510), (13702, 59980), (14995, 54808), (16120, 50983), (21080, 38987), (23992, 34255), (27404, 29990)]