207731420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{1499}}^1$

素因数の和:1575

約数の個数: 72

約数和(自身を含む): 484218000

約数和(自身を除く): 276486580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 169, 205, 260, 338, 410, 533, 676, 820, 845, 1066, 1499, 1690, 2132, 2665, 2998, 3380, 5330, 5996, 6929, 7495, 10660, 13858, 14990, 19487, 27716, 29980, 34645, 38974, 61459, 69290, 77948, 97435, 122918, 138580, 194870, 245836, 253331, 307295, 389740, 506662, 614590, 798967, 1013324, 1229180, 1266655, 1597934, 2533310, 3195868, 3994835, 5066620, 7989670, 10386571, 15979340, 20773142, 41546284, 51932855, 103865710, 207731420]

約数ペア:

[(1, 207731420), (2, 103865710), (4, 51932855), (5, 41546284), (10, 20773142), (13, 15979340), (20, 10386571), (26, 7989670), (41, 5066620), (52, 3994835), (65, 3195868), (82, 2533310), (130, 1597934), (164, 1266655), (169, 1229180), (205, 1013324), (260, 798967), (338, 614590), (410, 506662), (533, 389740), (676, 307295), (820, 253331), (845, 245836), (1066, 194870), (1499, 138580), (1690, 122918), (2132, 97435), (2665, 77948), (2998, 69290), (3380, 61459), (5330, 38974), (5996, 34645), (6929, 29980), (7495, 27716), (10660, 19487), (13858, 14990)]