31264740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 105670656

約数和(自身を除く): 74405916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 279, 310, 372, 390, 403, 431, 465, 468, 558, 585, 620, 780, 806, 862, 930, 1116, 1170, 1209, 1293, 1395, 1612, 1724, 1860, 2015, 2155, 2340, 2418, 2586, 2790, 3627, 3879, 4030, 4310, 4836, 5172, 5580, 5603, 6045, 6465, 7254, 7758, 8060, 8620, 11206, 12090, 12930, 13361, 14508, 15516, 16809, 18135, 19395, 22412, 24180, 25860, 26722, 28015, 33618, 36270, 38790, 40083, 50427, 53444, 56030, 66805, 67236, 72540, 77580, 80166, 84045, 100854, 112060, 120249, 133610, 160332, 168090, 173693, 200415, 201708, 240498, 252135, 267220, 336180, 347386, 400830, 480996, 504270, 521079, 601245, 694772, 801660, 868465, 1008540, 1042158, 1202490, 1563237, 1736930, 2084316, 2404980, 2605395, 3126474, 3473860, 5210790, 6252948, 7816185, 10421580, 15632370, 31264740]

約数ペア:

[(1, 31264740), (2, 15632370), (3, 10421580), (4, 7816185), (5, 6252948), (6, 5210790), (9, 3473860), (10, 3126474), (12, 2605395), (13, 2404980), (15, 2084316), (18, 1736930), (20, 1563237), (26, 1202490), (30, 1042158), (31, 1008540), (36, 868465), (39, 801660), (45, 694772), (52, 601245), (60, 521079), (62, 504270), (65, 480996), (78, 400830), (90, 347386), (93, 336180), (117, 267220), (124, 252135), (130, 240498), (155, 201708), (156, 200415), (180, 173693), (186, 168090), (195, 160332), (234, 133610), (260, 120249), (279, 112060), (310, 100854), (372, 84045), (390, 80166), (403, 77580), (431, 72540), (465, 67236), (468, 66805), (558, 56030), (585, 53444), (620, 50427), (780, 40083), (806, 38790), (862, 36270), (930, 33618), (1116, 28015), (1170, 26722), (1209, 25860), (1293, 24180), (1395, 22412), (1612, 19395), (1724, 18135), (1860, 16809), (2015, 15516), (2155, 14508), (2340, 13361), (2418, 12930), (2586, 12090), (2790, 11206), (3627, 8620), (3879, 8060), (4030, 7758), (4310, 7254), (4836, 6465), (5172, 6045), (5580, 5603)]