87969940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 200188800

約数和(自身を除く): 112218860

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 199, 230, 310, 398, 460, 620, 713, 796, 961, 995, 1426, 1922, 1990, 2852, 3565, 3844, 3980, 4577, 4805, 6169, 7130, 9154, 9610, 12338, 14260, 18308, 19220, 22103, 22885, 24676, 30845, 44206, 45770, 61690, 88412, 91540, 110515, 123380, 141887, 191239, 221030, 283774, 382478, 442060, 567548, 709435, 764956, 956195, 1418870, 1912390, 2837740, 3824780, 4398497, 8796994, 17593988, 21992485, 43984970, 87969940]

約数ペア:

[(1, 87969940), (2, 43984970), (4, 21992485), (5, 17593988), (10, 8796994), (20, 4398497), (23, 3824780), (31, 2837740), (46, 1912390), (62, 1418870), (92, 956195), (115, 764956), (124, 709435), (155, 567548), (199, 442060), (230, 382478), (310, 283774), (398, 221030), (460, 191239), (620, 141887), (713, 123380), (796, 110515), (961, 91540), (995, 88412), (1426, 61690), (1922, 45770), (1990, 44206), (2852, 30845), (3565, 24676), (3844, 22885), (3980, 22103), (4577, 19220), (4805, 18308), (6169, 14260), (7130, 12338), (9154, 9610)]