20219898250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{311}}^1\times {\mathrm{6343}}^1$

素因数の和:6712

約数の個数: 64

約数和(自身を含む): 38905671168

約数和(自身を除く): 18685772918

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 311, 410, 622, 1025, 1555, 2050, 3110, 5125, 6343, 7775, 10250, 12686, 12751, 15550, 25502, 31715, 38875, 63430, 63755, 77750, 127510, 158575, 260063, 317150, 318775, 520126, 637550, 792875, 1300315, 1585750, 1593875, 1972673, 2600630, 3187750, 3945346, 6501575, 9863365, 13003150, 19726730, 32507875, 49316825, 65015750, 80879593, 98633650, 161759186, 246584125, 404397965, 493168250, 808795930, 2021989825, 4043979650, 10109949125, 20219898250]

約数ペア:

[(1, 20219898250), (2, 10109949125), (5, 4043979650), (10, 2021989825), (25, 808795930), (41, 493168250), (50, 404397965), (82, 246584125), (125, 161759186), (205, 98633650), (250, 80879593), (311, 65015750), (410, 49316825), (622, 32507875), (1025, 19726730), (1555, 13003150), (2050, 9863365), (3110, 6501575), (5125, 3945346), (6343, 3187750), (7775, 2600630), (10250, 1972673), (12686, 1593875), (12751, 1585750), (15550, 1300315), (25502, 792875), (31715, 637550), (38875, 520126), (63430, 318775), (63755, 317150), (77750, 260063), (127510, 158575)]