78681720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1685

約数の個数: 128

約数和(自身を含む): 262563840

約数和(自身を除く): 183882120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1627, 1860, 2015, 2418, 3224, 3254, 3720, 4030, 4836, 4881, 6045, 6508, 8060, 8135, 9672, 9762, 12090, 13016, 16120, 16270, 19524, 21151, 24180, 24405, 32540, 39048, 42302, 48360, 48810, 50437, 63453, 65080, 84604, 97620, 100874, 105755, 126906, 151311, 169208, 195240, 201748, 211510, 252185, 253812, 302622, 317265, 403496, 423020, 504370, 507624, 605244, 634530, 655681, 756555, 846040, 1008740, 1210488, 1269060, 1311362, 1513110, 1967043, 2017480, 2538120, 2622724, 3026220, 3278405, 3934086, 5245448, 6052440, 6556810, 7868172, 9835215, 13113620, 15736344, 19670430, 26227240, 39340860, 78681720]

約数ペア:

[(1, 78681720), (2, 39340860), (3, 26227240), (4, 19670430), (5, 15736344), (6, 13113620), (8, 9835215), (10, 7868172), (12, 6556810), (13, 6052440), (15, 5245448), (20, 3934086), (24, 3278405), (26, 3026220), (30, 2622724), (31, 2538120), (39, 2017480), (40, 1967043), (52, 1513110), (60, 1311362), (62, 1269060), (65, 1210488), (78, 1008740), (93, 846040), (104, 756555), (120, 655681), (124, 634530), (130, 605244), (155, 507624), (156, 504370), (186, 423020), (195, 403496), (248, 317265), (260, 302622), (310, 253812), (312, 252185), (372, 211510), (390, 201748), (403, 195240), (465, 169208), (520, 151311), (620, 126906), (744, 105755), (780, 100874), (806, 97620), (930, 84604), (1209, 65080), (1240, 63453), (1560, 50437), (1612, 48810), (1627, 48360), (1860, 42302), (2015, 39048), (2418, 32540), (3224, 24405), (3254, 24180), (3720, 21151), (4030, 19524), (4836, 16270), (4881, 16120), (6045, 13016), (6508, 12090), (8060, 9762), (8135, 9672)]