636459380

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 1349505360

約数和(自身を除く): 713045980

約数列:

[1, 2, 4, 5, 10, 20, 269, 281, 421, 538, 562, 842, 1076, 1124, 1345, 1405, 1684, 2105, 2690, 2810, 4210, 5380, 5620, 8420, 75589, 113249, 118301, 151178, 226498, 236602, 302356, 377945, 452996, 473204, 566245, 591505, 755890, 1132490, 1183010, 1511780, 2264980, 2366020, 31822969, 63645938, 127291876, 159114845, 318229690, 636459380]

約数ペア:

[(1, 636459380), (2, 318229690), (4, 159114845), (5, 127291876), (10, 63645938), (20, 31822969), (269, 2366020), (281, 2264980), (421, 1511780), (538, 1183010), (562, 1132490), (842, 755890), (1076, 591505), (1124, 566245), (1345, 473204), (1405, 452996), (1684, 377945), (2105, 302356), (2690, 236602), (2810, 226498), (4210, 151178), (5380, 118301), (5620, 113249), (8420, 75589)]