220780105

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 366395904

約数和(自身を除く): 145615799

約数列:

[1, 5, 7, 13, 17, 23, 35, 65, 73, 85, 91, 115, 119, 161, 221, 289, 299, 365, 391, 455, 511, 595, 805, 949, 1105, 1241, 1445, 1495, 1547, 1679, 1955, 2023, 2093, 2555, 2737, 3757, 4745, 5083, 6205, 6643, 6647, 7735, 8395, 8687, 10115, 10465, 11753, 13685, 16133, 18785, 21097, 21827, 25415, 26299, 28543, 33215, 33235, 35581, 43435, 46529, 58765, 80665, 86411, 105485, 109135, 112931, 131495, 142715, 147679, 152789, 177905, 199801, 232645, 274261, 371059, 432055, 485231, 564655, 604877, 738395, 763945, 999005, 1371305, 1855295, 1919827, 2426155, 2597413, 3024385, 3396617, 6308003, 9599135, 12987065, 16983085, 31540015, 44156021, 220780105]

約数ペア:

[(1, 220780105), (5, 44156021), (7, 31540015), (13, 16983085), (17, 12987065), (23, 9599135), (35, 6308003), (65, 3396617), (73, 3024385), (85, 2597413), (91, 2426155), (115, 1919827), (119, 1855295), (161, 1371305), (221, 999005), (289, 763945), (299, 738395), (365, 604877), (391, 564655), (455, 485231), (511, 432055), (595, 371059), (805, 274261), (949, 232645), (1105, 199801), (1241, 177905), (1445, 152789), (1495, 147679), (1547, 142715), (1679, 131495), (1955, 112931), (2023, 109135), (2093, 105485), (2555, 86411), (2737, 80665), (3757, 58765), (4745, 46529), (5083, 43435), (6205, 35581), (6643, 33235), (6647, 33215), (7735, 28543), (8395, 26299), (8687, 25415), (10115, 21827), (10465, 21097), (11753, 18785), (13685, 16133)]