138707900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{22739}}^1$

素因数の和:22814

約数の個数: 36

約数和(自身を含む): 305943960

約数和(自身を除く): 167236060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 22739, 45478, 90956, 113695, 227390, 454780, 568475, 1136950, 1387079, 2273900, 2774158, 5548316, 6935395, 13870790, 27741580, 34676975, 69353950, 138707900]

約数ペア:

[(1, 138707900), (2, 69353950), (4, 34676975), (5, 27741580), (10, 13870790), (20, 6935395), (25, 5548316), (50, 2774158), (61, 2273900), (100, 1387079), (122, 1136950), (244, 568475), (305, 454780), (610, 227390), (1220, 113695), (1525, 90956), (3050, 45478), (6100, 22739)]