149456420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{105251}}^1$

素因数の和:105331

約数の個数: 24

約数和(自身を含む): 318282048

約数和(自身を除く): 168825628

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 105251, 210502, 421004, 526255, 1052510, 2105020, 7472821, 14945642, 29891284, 37364105, 74728210, 149456420]

約数ペア:

[(1, 149456420), (2, 74728210), (4, 37364105), (5, 29891284), (10, 14945642), (20, 7472821), (71, 2105020), (142, 1052510), (284, 526255), (355, 421004), (710, 210502), (1420, 105251)]