128405240

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{54409}}^1$

素因数の和:54479

約数の個数: 32

約数和(自身を含む): 293814000

約数和(自身を除く): 165408760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 54409, 108818, 217636, 272045, 435272, 544090, 1088180, 2176360, 3210131, 6420262, 12840524, 16050655, 25681048, 32101310, 64202620, 128405240]

約数ペア:

[(1, 128405240), (2, 64202620), (4, 32101310), (5, 25681048), (8, 16050655), (10, 12840524), (20, 6420262), (40, 3210131), (59, 2176360), (118, 1088180), (236, 544090), (295, 435272), (472, 272045), (590, 217636), (1180, 108818), (2360, 54409)]