20289672

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:487

約数の個数: 96

約数和(自身を含む): 60442200

約数和(自身を除く): 40152528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 53, 72, 78, 104, 106, 117, 156, 159, 212, 234, 312, 318, 409, 424, 468, 477, 636, 689, 818, 936, 954, 1227, 1272, 1378, 1636, 1908, 2067, 2454, 2756, 3272, 3681, 3816, 4134, 4908, 5317, 5512, 6201, 7362, 8268, 9816, 10634, 12402, 14724, 15951, 16536, 21268, 21677, 24804, 29448, 31902, 42536, 43354, 47853, 49608, 63804, 65031, 86708, 95706, 127608, 130062, 173416, 191412, 195093, 260124, 281801, 382824, 390186, 520248, 563602, 780372, 845403, 1127204, 1560744, 1690806, 2254408, 2536209, 3381612, 5072418, 6763224, 10144836, 20289672]

約数ペア:

[(1, 20289672), (2, 10144836), (3, 6763224), (4, 5072418), (6, 3381612), (8, 2536209), (9, 2254408), (12, 1690806), (13, 1560744), (18, 1127204), (24, 845403), (26, 780372), (36, 563602), (39, 520248), (52, 390186), (53, 382824), (72, 281801), (78, 260124), (104, 195093), (106, 191412), (117, 173416), (156, 130062), (159, 127608), (212, 95706), (234, 86708), (312, 65031), (318, 63804), (409, 49608), (424, 47853), (468, 43354), (477, 42536), (636, 31902), (689, 29448), (818, 24804), (936, 21677), (954, 21268), (1227, 16536), (1272, 15951), (1378, 14724), (1636, 12402), (1908, 10634), (2067, 9816), (2454, 8268), (2756, 7362), (3272, 6201), (3681, 5512), (3816, 5317), (4134, 4908)]