87688520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 204379200

約数和(自身を除く): 116690680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 179, 185, 296, 331, 358, 370, 662, 716, 740, 895, 1324, 1432, 1480, 1655, 1790, 2648, 3310, 3580, 6620, 6623, 7160, 12247, 13240, 13246, 24494, 26492, 33115, 48988, 52984, 59249, 61235, 66230, 97976, 118498, 122470, 132460, 236996, 244940, 264920, 296245, 473992, 489880, 592490, 1184980, 2192213, 2369960, 4384426, 8768852, 10961065, 17537704, 21922130, 43844260, 87688520]

約数ペア:

[(1, 87688520), (2, 43844260), (4, 21922130), (5, 17537704), (8, 10961065), (10, 8768852), (20, 4384426), (37, 2369960), (40, 2192213), (74, 1184980), (148, 592490), (179, 489880), (185, 473992), (296, 296245), (331, 264920), (358, 244940), (370, 236996), (662, 132460), (716, 122470), (740, 118498), (895, 97976), (1324, 66230), (1432, 61235), (1480, 59249), (1655, 52984), (1790, 48988), (2648, 33115), (3310, 26492), (3580, 24494), (6620, 13246), (6623, 13240), (7160, 12247)]