138666100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1091}}^1$

素因数の和:1177

約数の個数: 72

約数和(自身を含む): 318479616

約数和(自身を除く): 179813516

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 41, 50, 62, 82, 100, 124, 155, 164, 205, 310, 410, 620, 775, 820, 1025, 1091, 1271, 1550, 2050, 2182, 2542, 3100, 4100, 4364, 5084, 5455, 6355, 10910, 12710, 21820, 25420, 27275, 31775, 33821, 44731, 54550, 63550, 67642, 89462, 109100, 127100, 135284, 169105, 178924, 223655, 338210, 447310, 676420, 845525, 894620, 1118275, 1386661, 1691050, 2236550, 2773322, 3382100, 4473100, 5546644, 6933305, 13866610, 27733220, 34666525, 69333050, 138666100]

約数ペア:

[(1, 138666100), (2, 69333050), (4, 34666525), (5, 27733220), (10, 13866610), (20, 6933305), (25, 5546644), (31, 4473100), (41, 3382100), (50, 2773322), (62, 2236550), (82, 1691050), (100, 1386661), (124, 1118275), (155, 894620), (164, 845525), (205, 676420), (310, 447310), (410, 338210), (620, 223655), (775, 178924), (820, 169105), (1025, 135284), (1091, 127100), (1271, 109100), (1550, 89462), (2050, 67642), (2182, 63550), (2542, 54550), (3100, 44731), (4100, 33821), (4364, 31775), (5084, 27275), (5455, 25420), (6355, 21820), (10910, 12710)]