31874920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 91238400

約数和(自身を除く): 59363480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 79, 88, 110, 131, 140, 154, 158, 220, 262, 280, 308, 316, 385, 395, 440, 524, 553, 616, 632, 655, 770, 790, 869, 917, 1048, 1106, 1310, 1441, 1540, 1580, 1738, 1834, 2212, 2620, 2765, 2882, 3080, 3160, 3476, 3668, 4345, 4424, 4585, 5240, 5530, 5764, 6083, 6952, 7205, 7336, 8690, 9170, 10087, 10349, 11060, 11528, 12166, 14410, 17380, 18340, 20174, 20698, 22120, 24332, 28820, 30415, 34760, 36680, 40348, 41396, 48664, 50435, 51745, 57640, 60830, 72443, 80696, 82792, 100870, 103490, 113839, 121660, 144886, 201740, 206980, 227678, 243320, 289772, 362215, 403480, 413960, 455356, 569195, 579544, 724430, 796873, 910712, 1138390, 1448860, 1593746, 2276780, 2897720, 3187492, 3984365, 4553560, 6374984, 7968730, 15937460, 31874920]

約数ペア:

[(1, 31874920), (2, 15937460), (4, 7968730), (5, 6374984), (7, 4553560), (8, 3984365), (10, 3187492), (11, 2897720), (14, 2276780), (20, 1593746), (22, 1448860), (28, 1138390), (35, 910712), (40, 796873), (44, 724430), (55, 579544), (56, 569195), (70, 455356), (77, 413960), (79, 403480), (88, 362215), (110, 289772), (131, 243320), (140, 227678), (154, 206980), (158, 201740), (220, 144886), (262, 121660), (280, 113839), (308, 103490), (316, 100870), (385, 82792), (395, 80696), (440, 72443), (524, 60830), (553, 57640), (616, 51745), (632, 50435), (655, 48664), (770, 41396), (790, 40348), (869, 36680), (917, 34760), (1048, 30415), (1106, 28820), (1310, 24332), (1441, 22120), (1540, 20698), (1580, 20174), (1738, 18340), (1834, 17380), (2212, 14410), (2620, 12166), (2765, 11528), (2882, 11060), (3080, 10349), (3160, 10087), (3476, 9170), (3668, 8690), (4345, 7336), (4424, 7205), (4585, 6952), (5240, 6083), (5530, 5764)]