78811915

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 128894976

約数和(自身を除く): 50083061

約数列:

[1, 5, 7, 13, 17, 23, 35, 65, 85, 91, 115, 119, 161, 221, 299, 391, 443, 455, 595, 805, 1105, 1495, 1547, 1955, 2093, 2215, 2737, 3101, 5083, 5759, 7531, 7735, 10189, 10465, 13685, 15505, 25415, 28795, 35581, 37655, 40313, 50945, 52717, 71323, 97903, 132457, 173213, 177905, 201565, 263585, 356615, 489515, 662285, 685321, 866065, 927199, 1212491, 2251769, 3426605, 4635995, 6062455, 11258845, 15762383, 78811915]

約数ペア:

[(1, 78811915), (5, 15762383), (7, 11258845), (13, 6062455), (17, 4635995), (23, 3426605), (35, 2251769), (65, 1212491), (85, 927199), (91, 866065), (115, 685321), (119, 662285), (161, 489515), (221, 356615), (299, 263585), (391, 201565), (443, 177905), (455, 173213), (595, 132457), (805, 97903), (1105, 71323), (1495, 52717), (1547, 50945), (1955, 40313), (2093, 37655), (2215, 35581), (2737, 28795), (3101, 25415), (5083, 15505), (5759, 13685), (7531, 10465), (7735, 10189)]