661508796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{557}}^1$

素因数の和:931

約数の個数: 96

約数和(自身を含む): 1742888448

約数和(自身を除く): 1081379652

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 331, 557, 598, 662, 897, 993, 1114, 1196, 1324, 1671, 1794, 1986, 2228, 3342, 3588, 3972, 4303, 6684, 7241, 7613, 8606, 12811, 12909, 14482, 15226, 17212, 21723, 22839, 25622, 25818, 28964, 30452, 38433, 43446, 45678, 51244, 51636, 76866, 86892, 91356, 98969, 153732, 166543, 184367, 197938, 296907, 333086, 368734, 395876, 499629, 553101, 593814, 666172, 737468, 999258, 1106202, 1187628, 1998516, 2212404, 2396771, 4240441, 4793542, 7190313, 8480882, 9587084, 12721323, 14380626, 16961764, 25442646, 28761252, 50885292, 55125733, 110251466, 165377199, 220502932, 330754398, 661508796]

約数ペア:

[(1, 661508796), (2, 330754398), (3, 220502932), (4, 165377199), (6, 110251466), (12, 55125733), (13, 50885292), (23, 28761252), (26, 25442646), (39, 16961764), (46, 14380626), (52, 12721323), (69, 9587084), (78, 8480882), (92, 7190313), (138, 4793542), (156, 4240441), (276, 2396771), (299, 2212404), (331, 1998516), (557, 1187628), (598, 1106202), (662, 999258), (897, 737468), (993, 666172), (1114, 593814), (1196, 553101), (1324, 499629), (1671, 395876), (1794, 368734), (1986, 333086), (2228, 296907), (3342, 197938), (3588, 184367), (3972, 166543), (4303, 153732), (6684, 98969), (7241, 91356), (7613, 86892), (8606, 76866), (12811, 51636), (12909, 51244), (14482, 45678), (15226, 43446), (17212, 38433), (21723, 30452), (22839, 28964), (25622, 25818)]