1138765780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 2492350560

約数和(自身を除く): 1353584780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 179, 310, 331, 358, 620, 662, 716, 895, 961, 1324, 1655, 1790, 1922, 3310, 3580, 3844, 4805, 5549, 6620, 9610, 10261, 11098, 19220, 20522, 22196, 27745, 41044, 51305, 55490, 59249, 102610, 110980, 118498, 172019, 205220, 236996, 296245, 318091, 344038, 592490, 636182, 688076, 860095, 1184980, 1272364, 1590455, 1720190, 1836719, 3180910, 3440380, 3673438, 6361820, 7346876, 9183595, 18367190, 36734380, 56938289, 113876578, 227753156, 284691445, 569382890, 1138765780]

約数ペア:

[(1, 1138765780), (2, 569382890), (4, 284691445), (5, 227753156), (10, 113876578), (20, 56938289), (31, 36734380), (62, 18367190), (124, 9183595), (155, 7346876), (179, 6361820), (310, 3673438), (331, 3440380), (358, 3180910), (620, 1836719), (662, 1720190), (716, 1590455), (895, 1272364), (961, 1184980), (1324, 860095), (1655, 688076), (1790, 636182), (1922, 592490), (3310, 344038), (3580, 318091), (3844, 296245), (4805, 236996), (5549, 205220), (6620, 172019), (9610, 118498), (10261, 110980), (11098, 102610), (19220, 59249), (20522, 55490), (22196, 51305), (27745, 41044)]