219821900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{677}}^1$

素因数の和:899

約数の個数: 72

約数和(自身を含む): 508467456

約数和(自身を除く): 288645556

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 191, 340, 382, 425, 677, 764, 850, 955, 1354, 1700, 1910, 2708, 3247, 3385, 3820, 4775, 6494, 6770, 9550, 11509, 12988, 13540, 16235, 16925, 19100, 23018, 32470, 33850, 46036, 57545, 64940, 67700, 81175, 115090, 129307, 162350, 230180, 258614, 287725, 324700, 517228, 575450, 646535, 1150900, 1293070, 2198219, 2586140, 3232675, 4396438, 6465350, 8792876, 10991095, 12930700, 21982190, 43964380, 54955475, 109910950, 219821900]

約数ペア:

[(1, 219821900), (2, 109910950), (4, 54955475), (5, 43964380), (10, 21982190), (17, 12930700), (20, 10991095), (25, 8792876), (34, 6465350), (50, 4396438), (68, 3232675), (85, 2586140), (100, 2198219), (170, 1293070), (191, 1150900), (340, 646535), (382, 575450), (425, 517228), (677, 324700), (764, 287725), (850, 258614), (955, 230180), (1354, 162350), (1700, 129307), (1910, 115090), (2708, 81175), (3247, 67700), (3385, 64940), (3820, 57545), (4775, 46036), (6494, 33850), (6770, 32470), (9550, 23018), (11509, 19100), (12988, 16925), (13540, 16235)]