291320120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:685

約数の個数: 128

約数和(自身を含む): 813335040

約数和(自身を除く): 522014920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 163, 182, 260, 280, 326, 364, 455, 491, 520, 652, 728, 815, 910, 982, 1141, 1304, 1630, 1820, 1964, 2119, 2282, 2455, 3260, 3437, 3640, 3928, 4238, 4564, 4910, 5705, 6383, 6520, 6874, 8476, 9128, 9820, 10595, 11410, 12766, 13748, 14833, 16952, 17185, 19640, 21190, 22820, 25532, 27496, 29666, 31915, 34370, 42380, 44681, 45640, 51064, 59332, 63830, 68740, 74165, 80033, 84760, 89362, 118664, 127660, 137480, 148330, 160066, 178724, 223405, 255320, 296660, 320132, 357448, 400165, 446810, 560231, 593320, 640264, 800330, 893620, 1040429, 1120462, 1600660, 1787240, 2080858, 2240924, 2801155, 3201320, 4161716, 4481848, 5202145, 5602310, 7283003, 8323432, 10404290, 11204620, 14566006, 20808580, 22409240, 29132012, 36415015, 41617160, 58264024, 72830030, 145660060, 291320120]

約数ペア:

[(1, 291320120), (2, 145660060), (4, 72830030), (5, 58264024), (7, 41617160), (8, 36415015), (10, 29132012), (13, 22409240), (14, 20808580), (20, 14566006), (26, 11204620), (28, 10404290), (35, 8323432), (40, 7283003), (52, 5602310), (56, 5202145), (65, 4481848), (70, 4161716), (91, 3201320), (104, 2801155), (130, 2240924), (140, 2080858), (163, 1787240), (182, 1600660), (260, 1120462), (280, 1040429), (326, 893620), (364, 800330), (455, 640264), (491, 593320), (520, 560231), (652, 446810), (728, 400165), (815, 357448), (910, 320132), (982, 296660), (1141, 255320), (1304, 223405), (1630, 178724), (1820, 160066), (1964, 148330), (2119, 137480), (2282, 127660), (2455, 118664), (3260, 89362), (3437, 84760), (3640, 80033), (3928, 74165), (4238, 68740), (4564, 63830), (4910, 59332), (5705, 51064), (6383, 45640), (6520, 44681), (6874, 42380), (8476, 34370), (9128, 31915), (9820, 29666), (10595, 27496), (11410, 25532), (12766, 22820), (13748, 21190), (14833, 19640), (16952, 17185)]