20248729540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6211}}^1\times {\mathrm{12539}}^1$

素因数の和:18772

約数の個数: 48

約数和(自身を含む): 45804306240

約数和(自身を除く): 25555576700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6211, 12422, 12539, 24844, 25078, 31055, 50156, 62110, 62695, 80743, 124220, 125390, 161486, 163007, 250780, 322972, 326014, 403715, 652028, 807430, 815035, 1614860, 1630070, 3260140, 77879729, 155759458, 311518916, 389398645, 778797290, 1012436477, 1557594580, 2024872954, 4049745908, 5062182385, 10124364770, 20248729540]

約数ペア:

[(1, 20248729540), (2, 10124364770), (4, 5062182385), (5, 4049745908), (10, 2024872954), (13, 1557594580), (20, 1012436477), (26, 778797290), (52, 389398645), (65, 311518916), (130, 155759458), (260, 77879729), (6211, 3260140), (12422, 1630070), (12539, 1614860), (24844, 815035), (25078, 807430), (31055, 652028), (50156, 403715), (62110, 326014), (62695, 322972), (80743, 250780), (124220, 163007), (125390, 161486)]