80715236500

素因数分解:

$2^2\times 5^3\times {\mathrm{163}}^1\times {\mathrm{990371}}^1$

素因数の和:990553

約数の個数: 48

約数和(自身を含む): 177363740736

約数和(自身を除く): 96648504236

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 163, 250, 326, 500, 652, 815, 1630, 3260, 4075, 8150, 16300, 20375, 40750, 81500, 990371, 1980742, 3961484, 4951855, 9903710, 19807420, 24759275, 49518550, 99037100, 123796375, 161430473, 247592750, 322860946, 495185500, 645721892, 807152365, 1614304730, 3228609460, 4035761825, 8071523650, 16143047300, 20178809125, 40357618250, 80715236500]

約数ペア:

[(1, 80715236500), (2, 40357618250), (4, 20178809125), (5, 16143047300), (10, 8071523650), (20, 4035761825), (25, 3228609460), (50, 1614304730), (100, 807152365), (125, 645721892), (163, 495185500), (250, 322860946), (326, 247592750), (500, 161430473), (652, 123796375), (815, 99037100), (1630, 49518550), (3260, 24759275), (4075, 19807420), (8150, 9903710), (16300, 4951855), (20375, 3961484), (40750, 1980742), (81500, 990371)]