18605000

素因数分解:

$2^3\times 5^4\times {\mathrm{61}}^2$

素因数の和:148

約数の個数: 60

約数和(自身を含む): 44317845

約数和(自身を除く): 25712845

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 125, 200, 244, 250, 305, 488, 500, 610, 625, 1000, 1220, 1250, 1525, 2440, 2500, 3050, 3721, 5000, 6100, 7442, 7625, 12200, 14884, 15250, 18605, 29768, 30500, 37210, 38125, 61000, 74420, 76250, 93025, 148840, 152500, 186050, 305000, 372100, 465125, 744200, 930250, 1860500, 2325625, 3721000, 4651250, 9302500, 18605000]

約数ペア:

[(1, 18605000), (2, 9302500), (4, 4651250), (5, 3721000), (8, 2325625), (10, 1860500), (20, 930250), (25, 744200), (40, 465125), (50, 372100), (61, 305000), (100, 186050), (122, 152500), (125, 148840), (200, 93025), (244, 76250), (250, 74420), (305, 61000), (488, 38125), (500, 37210), (610, 30500), (625, 29768), (1000, 18605), (1220, 15250), (1250, 14884), (1525, 12200), (2440, 7625), (2500, 7442), (3050, 6100), (3721, 5000)]