389628100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{547}}^1$

素因数の和:997

約数の個数: 72

約数和(自身を含む): 899004960

約数和(自身を除く): 509376860

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 419, 425, 547, 838, 850, 1094, 1676, 1700, 2095, 2188, 2735, 4190, 5470, 7123, 8380, 9299, 10475, 10940, 13675, 14246, 18598, 20950, 27350, 28492, 35615, 37196, 41900, 46495, 54700, 71230, 92990, 142460, 178075, 185980, 229193, 232475, 356150, 458386, 464950, 712300, 916772, 929900, 1145965, 2291930, 3896281, 4583860, 5729825, 7792562, 11459650, 15585124, 19481405, 22919300, 38962810, 77925620, 97407025, 194814050, 389628100]

約数ペア:

[(1, 389628100), (2, 194814050), (4, 97407025), (5, 77925620), (10, 38962810), (17, 22919300), (20, 19481405), (25, 15585124), (34, 11459650), (50, 7792562), (68, 5729825), (85, 4583860), (100, 3896281), (170, 2291930), (340, 1145965), (419, 929900), (425, 916772), (547, 712300), (838, 464950), (850, 458386), (1094, 356150), (1676, 232475), (1700, 229193), (2095, 185980), (2188, 178075), (2735, 142460), (4190, 92990), (5470, 71230), (7123, 54700), (8380, 46495), (9299, 41900), (10475, 37196), (10940, 35615), (13675, 28492), (14246, 27350), (18598, 20950)]