81603669880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1\times {\mathrm{61141}}^1$

素因数の和:61760

約数の個数: 64

約数和(自身を含む): 186962453280

約数和(自身を除く): 105358783400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 547, 610, 1094, 1220, 2188, 2440, 2735, 4376, 5470, 10940, 21880, 33367, 61141, 66734, 122282, 133468, 166835, 244564, 266936, 305705, 333670, 489128, 611410, 667340, 1222820, 1334680, 2445640, 3729601, 7459202, 14918404, 18648005, 29836808, 33444127, 37296010, 66888254, 74592020, 133776508, 149184040, 167220635, 267553016, 334441270, 668882540, 1337765080, 2040091747, 4080183494, 8160366988, 10200458735, 16320733976, 20400917470, 40801834940, 81603669880]

約数ペア:

[(1, 81603669880), (2, 40801834940), (4, 20400917470), (5, 16320733976), (8, 10200458735), (10, 8160366988), (20, 4080183494), (40, 2040091747), (61, 1337765080), (122, 668882540), (244, 334441270), (305, 267553016), (488, 167220635), (547, 149184040), (610, 133776508), (1094, 74592020), (1220, 66888254), (2188, 37296010), (2440, 33444127), (2735, 29836808), (4376, 18648005), (5470, 14918404), (10940, 7459202), (21880, 3729601), (33367, 2445640), (61141, 1334680), (66734, 1222820), (122282, 667340), (133468, 611410), (166835, 489128), (244564, 333670), (266936, 305705)]