81578200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3371}}^1$

素因数の和:3409

約数の個数: 72

約数和(自身を含む): 208541340

約数和(自身を除く): 126963140

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 200, 220, 242, 275, 440, 484, 550, 605, 968, 1100, 1210, 2200, 2420, 3025, 3371, 4840, 6050, 6742, 12100, 13484, 16855, 24200, 26968, 33710, 37081, 67420, 74162, 84275, 134840, 148324, 168550, 185405, 296648, 337100, 370810, 407891, 674200, 741620, 815782, 927025, 1483240, 1631564, 1854050, 2039455, 3263128, 3708100, 4078910, 7416200, 8157820, 10197275, 16315640, 20394550, 40789100, 81578200]

約数ペア:

[(1, 81578200), (2, 40789100), (4, 20394550), (5, 16315640), (8, 10197275), (10, 8157820), (11, 7416200), (20, 4078910), (22, 3708100), (25, 3263128), (40, 2039455), (44, 1854050), (50, 1631564), (55, 1483240), (88, 927025), (100, 815782), (110, 741620), (121, 674200), (200, 407891), (220, 370810), (242, 337100), (275, 296648), (440, 185405), (484, 168550), (550, 148324), (605, 134840), (968, 84275), (1100, 74162), (1210, 67420), (2200, 37081), (2420, 33710), (3025, 26968), (3371, 24200), (4840, 16855), (6050, 13484), (6742, 12100)]