71661915

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{349}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 139885200

約数和(自身を除く): 68223285

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 169, 195, 243, 349, 351, 405, 507, 585, 845, 1047, 1053, 1215, 1521, 1745, 1755, 2535, 3141, 3159, 4537, 4563, 5235, 5265, 7605, 9423, 13611, 13689, 15705, 15795, 22685, 22815, 28269, 40833, 41067, 47115, 58981, 68055, 68445, 84807, 122499, 141345, 176943, 204165, 205335, 294905, 367497, 424035, 530829, 612495, 884715, 1102491, 1592487, 1837485, 2654145, 4777461, 5512455, 7962435, 14332383, 23887305, 71661915]

約数ペア:

[(1, 71661915), (3, 23887305), (5, 14332383), (9, 7962435), (13, 5512455), (15, 4777461), (27, 2654145), (39, 1837485), (45, 1592487), (65, 1102491), (81, 884715), (117, 612495), (135, 530829), (169, 424035), (195, 367497), (243, 294905), (349, 205335), (351, 204165), (405, 176943), (507, 141345), (585, 122499), (845, 84807), (1047, 68445), (1053, 68055), (1215, 58981), (1521, 47115), (1745, 41067), (1755, 40833), (2535, 28269), (3141, 22815), (3159, 22685), (4537, 15795), (4563, 15705), (5235, 13689), (5265, 13611), (7605, 9423)]