2421820

素因数分解:

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

素因数の和:462

約数の個数: 36

約数和(自身を含む): 5415480

約数和(自身を除く): 2993660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 419, 578, 838, 1156, 1445, 1676, 2095, 2890, 4190, 5780, 7123, 8380, 14246, 28492, 35615, 71230, 121091, 142460, 242182, 484364, 605455, 1210910, 2421820]

約数ペア:

[(1, 2421820), (2, 1210910), (4, 605455), (5, 484364), (10, 242182), (17, 142460), (20, 121091), (34, 71230), (68, 35615), (85, 28492), (170, 14246), (289, 8380), (340, 7123), (419, 5780), (578, 4190), (838, 2890), (1156, 2095), (1445, 1676)]