393980493460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1\times {\mathrm{235013}}^1$

素因数の和:235900

約数の個数: 48

約数和(自身を含む): 836038803600

約数和(自身を除く): 442058310140

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 769, 1090, 1538, 2180, 3076, 3845, 7690, 15380, 83821, 167642, 235013, 335284, 419105, 470026, 838210, 940052, 1175065, 1676420, 2350130, 4700260, 25616417, 51232834, 102465668, 128082085, 180724997, 256164170, 361449994, 512328340, 722899988, 903624985, 1807249970, 3614499940, 19699024673, 39398049346, 78796098692, 98495123365, 196990246730, 393980493460]

約数ペア:

[(1, 393980493460), (2, 196990246730), (4, 98495123365), (5, 78796098692), (10, 39398049346), (20, 19699024673), (109, 3614499940), (218, 1807249970), (436, 903624985), (545, 722899988), (769, 512328340), (1090, 361449994), (1538, 256164170), (2180, 180724997), (3076, 128082085), (3845, 102465668), (7690, 51232834), (15380, 25616417), (83821, 4700260), (167642, 2350130), (235013, 1676420), (335284, 1175065), (419105, 940052), (470026, 838210)]