19183840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 51057216

約数和(自身を除く): 31873376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 368, 401, 416, 460, 520, 598, 736, 802, 920, 1040, 1196, 1495, 1604, 1840, 2005, 2080, 2392, 2990, 3208, 3680, 4010, 4784, 5213, 5980, 6416, 8020, 9223, 9568, 10426, 11960, 12832, 16040, 18446, 20852, 23920, 26065, 32080, 36892, 41704, 46115, 47840, 52130, 64160, 73784, 83408, 92230, 104260, 119899, 147568, 166816, 184460, 208520, 239798, 295136, 368920, 417040, 479596, 599495, 737840, 834080, 959192, 1198990, 1475680, 1918384, 2397980, 3836768, 4795960, 9591920, 19183840]

約数ペア:

[(1, 19183840), (2, 9591920), (4, 4795960), (5, 3836768), (8, 2397980), (10, 1918384), (13, 1475680), (16, 1198990), (20, 959192), (23, 834080), (26, 737840), (32, 599495), (40, 479596), (46, 417040), (52, 368920), (65, 295136), (80, 239798), (92, 208520), (104, 184460), (115, 166816), (130, 147568), (160, 119899), (184, 104260), (208, 92230), (230, 83408), (260, 73784), (299, 64160), (368, 52130), (401, 47840), (416, 46115), (460, 41704), (520, 36892), (598, 32080), (736, 26065), (802, 23920), (920, 20852), (1040, 18446), (1196, 16040), (1495, 12832), (1604, 11960), (1840, 10426), (2005, 9568), (2080, 9223), (2392, 8020), (2990, 6416), (3208, 5980), (3680, 5213), (4010, 4784)]