255839640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2957}}^1$

素因数の和:3081

約数の個数: 128

約数和(自身を含む): 885980160

約数和(自身を除く): 630140520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 103, 105, 120, 140, 168, 206, 210, 280, 309, 412, 420, 515, 618, 721, 824, 840, 1030, 1236, 1442, 1545, 2060, 2163, 2472, 2884, 2957, 3090, 3605, 4120, 4326, 5768, 5914, 6180, 7210, 8652, 8871, 10815, 11828, 12360, 14420, 14785, 17304, 17742, 20699, 21630, 23656, 28840, 29570, 35484, 41398, 43260, 44355, 59140, 62097, 70968, 82796, 86520, 88710, 103495, 118280, 124194, 165592, 177420, 206990, 248388, 304571, 310485, 354840, 413980, 496776, 609142, 620970, 827960, 913713, 1218284, 1241940, 1522855, 1827426, 2131997, 2436568, 2483880, 3045710, 3654852, 4263994, 4568565, 6091420, 6395991, 7309704, 8527988, 9137130, 10659985, 12182840, 12791982, 17055976, 18274260, 21319970, 25583964, 31979955, 36548520, 42639940, 51167928, 63959910, 85279880, 127919820, 255839640]

約数ペア:

[(1, 255839640), (2, 127919820), (3, 85279880), (4, 63959910), (5, 51167928), (6, 42639940), (7, 36548520), (8, 31979955), (10, 25583964), (12, 21319970), (14, 18274260), (15, 17055976), (20, 12791982), (21, 12182840), (24, 10659985), (28, 9137130), (30, 8527988), (35, 7309704), (40, 6395991), (42, 6091420), (56, 4568565), (60, 4263994), (70, 3654852), (84, 3045710), (103, 2483880), (105, 2436568), (120, 2131997), (140, 1827426), (168, 1522855), (206, 1241940), (210, 1218284), (280, 913713), (309, 827960), (412, 620970), (420, 609142), (515, 496776), (618, 413980), (721, 354840), (824, 310485), (840, 304571), (1030, 248388), (1236, 206990), (1442, 177420), (1545, 165592), (2060, 124194), (2163, 118280), (2472, 103495), (2884, 88710), (2957, 86520), (3090, 82796), (3605, 70968), (4120, 62097), (4326, 59140), (5768, 44355), (5914, 43260), (6180, 41398), (7210, 35484), (8652, 29570), (8871, 28840), (10815, 23656), (11828, 21630), (12360, 20699), (14420, 17742), (14785, 17304)]