89616040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72271}}^1$

素因数の和:72313

約数の個数: 32

約数和(自身を含む): 208143360

約数和(自身を除く): 118527320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 72271, 144542, 289084, 361355, 578168, 722710, 1445420, 2240401, 2890840, 4480802, 8961604, 11202005, 17923208, 22404010, 44808020, 89616040]

約数ペア:

[(1, 89616040), (2, 44808020), (4, 22404010), (5, 17923208), (8, 11202005), (10, 8961604), (20, 4480802), (31, 2890840), (40, 2240401), (62, 1445420), (124, 722710), (155, 578168), (248, 361355), (310, 289084), (620, 144542), (1240, 72271)]