71847405

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{25343}}^1$

素因数の和:25367

約数の個数: 40

約数和(自身を含む): 147197952

約数和(自身を除く): 75350547

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 25343, 76029, 126715, 177401, 228087, 380145, 532203, 684261, 887005, 1140435, 1596609, 2052783, 2661015, 3421305, 4789827, 7983045, 10263915, 14369481, 23949135, 71847405]

約数ペア:

[(1, 71847405), (3, 23949135), (5, 14369481), (7, 10263915), (9, 7983045), (15, 4789827), (21, 3421305), (27, 2661015), (35, 2052783), (45, 1596609), (63, 1140435), (81, 887005), (105, 684261), (135, 532203), (189, 380145), (315, 228087), (405, 177401), (567, 126715), (945, 76029), (2835, 25343)]