20420010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:620

約数の個数: 96

約数和(自身を含む): 59125248

約数和(自身を除く): 38705238

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 31, 39, 45, 62, 65, 78, 90, 93, 117, 130, 155, 186, 195, 234, 279, 310, 390, 403, 465, 558, 563, 585, 806, 930, 1126, 1170, 1209, 1395, 1689, 2015, 2418, 2790, 2815, 3378, 3627, 4030, 5067, 5630, 6045, 7254, 7319, 8445, 10134, 12090, 14638, 16890, 17453, 18135, 21957, 25335, 34906, 36270, 36595, 43914, 50670, 52359, 65871, 73190, 87265, 104718, 109785, 131742, 157077, 174530, 219570, 226889, 261795, 314154, 329355, 453778, 523590, 658710, 680667, 785385, 1134445, 1361334, 1570770, 2042001, 2268890, 3403335, 4084002, 6806670, 10210005, 20420010]

約数ペア:

[(1, 20420010), (2, 10210005), (3, 6806670), (5, 4084002), (6, 3403335), (9, 2268890), (10, 2042001), (13, 1570770), (15, 1361334), (18, 1134445), (26, 785385), (30, 680667), (31, 658710), (39, 523590), (45, 453778), (62, 329355), (65, 314154), (78, 261795), (90, 226889), (93, 219570), (117, 174530), (130, 157077), (155, 131742), (186, 109785), (195, 104718), (234, 87265), (279, 73190), (310, 65871), (390, 52359), (403, 50670), (465, 43914), (558, 36595), (563, 36270), (585, 34906), (806, 25335), (930, 21957), (1126, 18135), (1170, 17453), (1209, 16890), (1395, 14638), (1689, 12090), (2015, 10134), (2418, 8445), (2790, 7319), (2815, 7254), (3378, 6045), (3627, 5630), (4030, 5067)]