155630900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{811}}^1$

素因数の和:945

約数の個数: 72

約数和(自身を含む): 359456160

約数和(自身を除く): 203825260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 101, 190, 202, 380, 404, 475, 505, 811, 950, 1010, 1622, 1900, 1919, 2020, 2525, 3244, 3838, 4055, 5050, 7676, 8110, 9595, 10100, 15409, 16220, 19190, 20275, 30818, 38380, 40550, 47975, 61636, 77045, 81100, 81911, 95950, 154090, 163822, 191900, 308180, 327644, 385225, 409555, 770450, 819110, 1540900, 1556309, 1638220, 2047775, 3112618, 4095550, 6225236, 7781545, 8191100, 15563090, 31126180, 38907725, 77815450, 155630900]

約数ペア:

[(1, 155630900), (2, 77815450), (4, 38907725), (5, 31126180), (10, 15563090), (19, 8191100), (20, 7781545), (25, 6225236), (38, 4095550), (50, 3112618), (76, 2047775), (95, 1638220), (100, 1556309), (101, 1540900), (190, 819110), (202, 770450), (380, 409555), (404, 385225), (475, 327644), (505, 308180), (811, 191900), (950, 163822), (1010, 154090), (1622, 95950), (1900, 81911), (1919, 81100), (2020, 77045), (2525, 61636), (3244, 47975), (3838, 40550), (4055, 38380), (5050, 30818), (7676, 20275), (8110, 19190), (9595, 16220), (10100, 15409)]