123381240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1951}}^1$

素因数の和:2013

約数の個数: 128

約数和(自身を含む): 404766720

約数和(自身を除く): 281385480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 465, 510, 527, 620, 680, 744, 930, 1020, 1054, 1240, 1581, 1860, 1951, 2040, 2108, 2635, 3162, 3720, 3902, 4216, 5270, 5853, 6324, 7804, 7905, 9755, 10540, 11706, 12648, 15608, 15810, 19510, 21080, 23412, 29265, 31620, 33167, 39020, 46824, 58530, 60481, 63240, 66334, 78040, 99501, 117060, 120962, 132668, 165835, 181443, 199002, 234120, 241924, 265336, 302405, 331670, 362886, 398004, 483848, 497505, 604810, 663340, 725772, 796008, 907215, 995010, 1028177, 1209620, 1326680, 1451544, 1814430, 1990020, 2056354, 2419240, 3084531, 3628860, 3980040, 4112708, 5140885, 6169062, 7257720, 8225416, 10281770, 12338124, 15422655, 20563540, 24676248, 30845310, 41127080, 61690620, 123381240]

約数ペア:

[(1, 123381240), (2, 61690620), (3, 41127080), (4, 30845310), (5, 24676248), (6, 20563540), (8, 15422655), (10, 12338124), (12, 10281770), (15, 8225416), (17, 7257720), (20, 6169062), (24, 5140885), (30, 4112708), (31, 3980040), (34, 3628860), (40, 3084531), (51, 2419240), (60, 2056354), (62, 1990020), (68, 1814430), (85, 1451544), (93, 1326680), (102, 1209620), (120, 1028177), (124, 995010), (136, 907215), (155, 796008), (170, 725772), (186, 663340), (204, 604810), (248, 497505), (255, 483848), (310, 398004), (340, 362886), (372, 331670), (408, 302405), (465, 265336), (510, 241924), (527, 234120), (620, 199002), (680, 181443), (744, 165835), (930, 132668), (1020, 120962), (1054, 117060), (1240, 99501), (1581, 78040), (1860, 66334), (1951, 63240), (2040, 60481), (2108, 58530), (2635, 46824), (3162, 39020), (3720, 33167), (3902, 31620), (4216, 29265), (5270, 23412), (5853, 21080), (6324, 19510), (7804, 15810), (7905, 15608), (9755, 12648), (10540, 11706)]