61516520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 149945040

約数和(自身を除く): 88428520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 281, 421, 520, 562, 842, 1124, 1405, 1684, 2105, 2248, 2810, 3368, 3653, 4210, 5473, 5620, 7306, 8420, 10946, 11240, 14612, 16840, 18265, 21892, 27365, 29224, 36530, 43784, 54730, 73060, 109460, 118301, 146120, 218920, 236602, 473204, 591505, 946408, 1183010, 1537913, 2366020, 3075826, 4732040, 6151652, 7689565, 12303304, 15379130, 30758260, 61516520]

約数ペア:

[(1, 61516520), (2, 30758260), (4, 15379130), (5, 12303304), (8, 7689565), (10, 6151652), (13, 4732040), (20, 3075826), (26, 2366020), (40, 1537913), (52, 1183010), (65, 946408), (104, 591505), (130, 473204), (260, 236602), (281, 218920), (421, 146120), (520, 118301), (562, 109460), (842, 73060), (1124, 54730), (1405, 43784), (1684, 36530), (2105, 29224), (2248, 27365), (2810, 21892), (3368, 18265), (3653, 16840), (4210, 14612), (5473, 11240), (5620, 10946), (7306, 8420)]