61471725

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 121286880

約数和(自身を除く): 59815155

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 49, 75, 105, 129, 147, 175, 215, 245, 301, 389, 525, 645, 735, 903, 1075, 1167, 1225, 1505, 1945, 2107, 2723, 3225, 3675, 4515, 5835, 6321, 7525, 8169, 9725, 10535, 13615, 16727, 19061, 22575, 29175, 31605, 40845, 50181, 52675, 57183, 68075, 83635, 95305, 117089, 158025, 204225, 250905, 285915, 351267, 418175, 476525, 585445, 819623, 1254525, 1429575, 1756335, 2458869, 2927225, 4098115, 8781675, 12294345, 20490575, 61471725]

約数ペア:

[(1, 61471725), (3, 20490575), (5, 12294345), (7, 8781675), (15, 4098115), (21, 2927225), (25, 2458869), (35, 1756335), (43, 1429575), (49, 1254525), (75, 819623), (105, 585445), (129, 476525), (147, 418175), (175, 351267), (215, 285915), (245, 250905), (301, 204225), (389, 158025), (525, 117089), (645, 95305), (735, 83635), (903, 68075), (1075, 57183), (1167, 52675), (1225, 50181), (1505, 40845), (1945, 31605), (2107, 29175), (2723, 22575), (3225, 19061), (3675, 16727), (4515, 13615), (5835, 10535), (6321, 9725), (7525, 8169)]