18445310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 20261890

約数列:

[1, 2, 5, 10, 13, 23, 26, 31, 46, 62, 65, 115, 130, 155, 199, 230, 299, 310, 398, 403, 598, 713, 806, 995, 1426, 1495, 1990, 2015, 2587, 2990, 3565, 4030, 4577, 5174, 6169, 7130, 9154, 9269, 12338, 12935, 18538, 22885, 25870, 30845, 45770, 46345, 59501, 61690, 80197, 92690, 119002, 141887, 160394, 283774, 297505, 400985, 595010, 709435, 801970, 1418870, 1844531, 3689062, 9222655, 18445310]

約数ペア:

[(1, 18445310), (2, 9222655), (5, 3689062), (10, 1844531), (13, 1418870), (23, 801970), (26, 709435), (31, 595010), (46, 400985), (62, 297505), (65, 283774), (115, 160394), (130, 141887), (155, 119002), (199, 92690), (230, 80197), (299, 61690), (310, 59501), (398, 46345), (403, 45770), (598, 30845), (713, 25870), (806, 22885), (995, 18538), (1426, 12935), (1495, 12338), (1990, 9269), (2015, 9154), (2587, 7130), (2990, 6169), (3565, 5174), (4030, 4577)]