19998536445

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{138059}}^1$

素因数の和:138139

約数の個数: 64

約数和(自身を含む): 37773216000

約数和(自身を除く): 17774679555

約数列:

[1, 3, 5, 9, 15, 27, 29, 37, 45, 87, 111, 135, 145, 185, 261, 333, 435, 555, 783, 999, 1073, 1305, 1665, 3219, 3915, 4995, 5365, 9657, 16095, 28971, 48285, 138059, 144855, 414177, 690295, 1242531, 2070885, 3727593, 4003711, 5108183, 6212655, 12011133, 15324549, 18637965, 20018555, 25540915, 36033399, 45973647, 60055665, 76622745, 108100197, 137920941, 148137307, 180166995, 229868235, 444411921, 540500985, 689604705, 740686535, 1333235763, 2222059605, 3999707289, 6666178815, 19998536445]

約数ペア:

[(1, 19998536445), (3, 6666178815), (5, 3999707289), (9, 2222059605), (15, 1333235763), (27, 740686535), (29, 689604705), (37, 540500985), (45, 444411921), (87, 229868235), (111, 180166995), (135, 148137307), (145, 137920941), (185, 108100197), (261, 76622745), (333, 60055665), (435, 45973647), (555, 36033399), (783, 25540915), (999, 20018555), (1073, 18637965), (1305, 15324549), (1665, 12011133), (3219, 6212655), (3915, 5108183), (4995, 4003711), (5365, 3727593), (9657, 2070885), (16095, 1242531), (28971, 690295), (48285, 414177), (138059, 144855)]