221604760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{426163}}^1$

素因数の和:426187

約数の個数: 32

約数和(自身を含む): 536966640

約数和(自身を除く): 315361880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 426163, 852326, 1704652, 2130815, 3409304, 4261630, 5540119, 8523260, 11080238, 17046520, 22160476, 27700595, 44320952, 55401190, 110802380, 221604760]

約数ペア:

[(1, 221604760), (2, 110802380), (4, 55401190), (5, 44320952), (8, 27700595), (10, 22160476), (13, 17046520), (20, 11080238), (26, 8523260), (40, 5540119), (52, 4261630), (65, 3409304), (104, 2130815), (130, 1704652), (260, 852326), (520, 426163)]