31262980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 85034880

約数和(自身を除く): 53771900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 28, 35, 38, 46, 49, 70, 73, 76, 92, 95, 98, 115, 133, 140, 146, 161, 190, 196, 230, 245, 266, 292, 322, 365, 380, 437, 460, 490, 511, 532, 644, 665, 730, 805, 874, 931, 980, 1022, 1127, 1330, 1387, 1460, 1610, 1679, 1748, 1862, 2044, 2185, 2254, 2555, 2660, 2774, 3059, 3220, 3358, 3577, 3724, 4370, 4508, 4655, 5110, 5548, 5635, 6118, 6716, 6935, 7154, 8395, 8740, 9310, 9709, 10220, 11270, 11753, 12236, 13870, 14308, 15295, 16790, 17885, 18620, 19418, 21413, 22540, 23506, 27740, 30590, 31901, 33580, 35770, 38836, 42826, 47012, 48545, 58765, 61180, 63802, 67963, 71540, 82271, 85652, 97090, 107065, 117530, 127604, 135926, 159505, 164542, 194180, 214130, 223307, 235060, 271852, 319010, 329084, 339815, 411355, 428260, 446614, 638020, 679630, 822710, 893228, 1116535, 1359260, 1563149, 1645420, 2233070, 3126298, 4466140, 6252596, 7815745, 15631490, 31262980]

約数ペア:

[(1, 31262980), (2, 15631490), (4, 7815745), (5, 6252596), (7, 4466140), (10, 3126298), (14, 2233070), (19, 1645420), (20, 1563149), (23, 1359260), (28, 1116535), (35, 893228), (38, 822710), (46, 679630), (49, 638020), (70, 446614), (73, 428260), (76, 411355), (92, 339815), (95, 329084), (98, 319010), (115, 271852), (133, 235060), (140, 223307), (146, 214130), (161, 194180), (190, 164542), (196, 159505), (230, 135926), (245, 127604), (266, 117530), (292, 107065), (322, 97090), (365, 85652), (380, 82271), (437, 71540), (460, 67963), (490, 63802), (511, 61180), (532, 58765), (644, 48545), (665, 47012), (730, 42826), (805, 38836), (874, 35770), (931, 33580), (980, 31901), (1022, 30590), (1127, 27740), (1330, 23506), (1387, 22540), (1460, 21413), (1610, 19418), (1679, 18620), (1748, 17885), (1862, 16790), (2044, 15295), (2185, 14308), (2254, 13870), (2555, 12236), (2660, 11753), (2774, 11270), (3059, 10220), (3220, 9709), (3358, 9310), (3577, 8740), (3724, 8395), (4370, 7154), (4508, 6935), (4655, 6716), (5110, 6118), (5548, 5635)]