31215140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 77414400

約数和(自身を除く): 46199260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 31, 44, 46, 55, 62, 92, 110, 115, 124, 155, 199, 220, 230, 253, 310, 341, 398, 460, 506, 620, 682, 713, 796, 995, 1012, 1265, 1364, 1426, 1705, 1990, 2189, 2530, 2852, 3410, 3565, 3980, 4378, 4577, 5060, 6169, 6820, 7130, 7843, 8756, 9154, 10945, 12338, 14260, 15686, 18308, 21890, 22885, 24676, 30845, 31372, 39215, 43780, 45770, 50347, 61690, 67859, 78430, 91540, 100694, 123380, 135718, 141887, 156860, 201388, 251735, 271436, 283774, 339295, 503470, 567548, 678590, 709435, 1006940, 1357180, 1418870, 1560757, 2837740, 3121514, 6243028, 7803785, 15607570, 31215140]

約数ペア:

[(1, 31215140), (2, 15607570), (4, 7803785), (5, 6243028), (10, 3121514), (11, 2837740), (20, 1560757), (22, 1418870), (23, 1357180), (31, 1006940), (44, 709435), (46, 678590), (55, 567548), (62, 503470), (92, 339295), (110, 283774), (115, 271436), (124, 251735), (155, 201388), (199, 156860), (220, 141887), (230, 135718), (253, 123380), (310, 100694), (341, 91540), (398, 78430), (460, 67859), (506, 61690), (620, 50347), (682, 45770), (713, 43780), (796, 39215), (995, 31372), (1012, 30845), (1265, 24676), (1364, 22885), (1426, 21890), (1705, 18308), (1990, 15686), (2189, 14260), (2530, 12338), (2852, 10945), (3410, 9154), (3565, 8756), (3980, 7843), (4378, 7130), (4577, 6820), (5060, 6169)]