221323240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{70039}}^1$

素因数の和:70129

約数の個数: 32

約数和(自身を含む): 504288000

約数和(自身を除く): 282964760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 70039, 140078, 280156, 350195, 560312, 700390, 1400780, 2801560, 5533081, 11066162, 22132324, 27665405, 44264648, 55330810, 110661620, 221323240]

約数ペア:

[(1, 221323240), (2, 110661620), (4, 55330810), (5, 44264648), (8, 27665405), (10, 22132324), (20, 11066162), (40, 5533081), (79, 2801560), (158, 1400780), (316, 700390), (395, 560312), (632, 350195), (790, 280156), (1580, 140078), (3160, 70039)]