31490940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:931

約数の個数: 96

約数和(自身を含む): 97090560

約数和(自身を除く): 65599620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 47, 52, 60, 65, 78, 94, 130, 141, 156, 188, 195, 235, 260, 282, 390, 470, 564, 611, 705, 780, 859, 940, 1222, 1410, 1718, 1833, 2444, 2577, 2820, 3055, 3436, 3666, 4295, 5154, 6110, 7332, 8590, 9165, 10308, 11167, 12220, 12885, 17180, 18330, 22334, 25770, 33501, 36660, 40373, 44668, 51540, 55835, 67002, 80746, 111670, 121119, 134004, 161492, 167505, 201865, 223340, 242238, 335010, 403730, 484476, 524849, 605595, 670020, 807460, 1049698, 1211190, 1574547, 2099396, 2422380, 2624245, 3149094, 5248490, 6298188, 7872735, 10496980, 15745470, 31490940]

約数ペア:

[(1, 31490940), (2, 15745470), (3, 10496980), (4, 7872735), (5, 6298188), (6, 5248490), (10, 3149094), (12, 2624245), (13, 2422380), (15, 2099396), (20, 1574547), (26, 1211190), (30, 1049698), (39, 807460), (47, 670020), (52, 605595), (60, 524849), (65, 484476), (78, 403730), (94, 335010), (130, 242238), (141, 223340), (156, 201865), (188, 167505), (195, 161492), (235, 134004), (260, 121119), (282, 111670), (390, 80746), (470, 67002), (564, 55835), (611, 51540), (705, 44668), (780, 40373), (859, 36660), (940, 33501), (1222, 25770), (1410, 22334), (1718, 18330), (1833, 17180), (2444, 12885), (2577, 12220), (2820, 11167), (3055, 10308), (3436, 9165), (3666, 8590), (4295, 7332), (5154, 6110)]