20454900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1663}}^1$

素因数の和:1721

約数の個数: 72

約数和(自身を含む): 60662784

約数和(自身を除く): 40207884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 41, 50, 60, 75, 82, 100, 123, 150, 164, 205, 246, 300, 410, 492, 615, 820, 1025, 1230, 1663, 2050, 2460, 3075, 3326, 4100, 4989, 6150, 6652, 8315, 9978, 12300, 16630, 19956, 24945, 33260, 41575, 49890, 68183, 83150, 99780, 124725, 136366, 166300, 204549, 249450, 272732, 340915, 409098, 498900, 681830, 818196, 1022745, 1363660, 1704575, 2045490, 3409150, 4090980, 5113725, 6818300, 10227450, 20454900]

約数ペア:

[(1, 20454900), (2, 10227450), (3, 6818300), (4, 5113725), (5, 4090980), (6, 3409150), (10, 2045490), (12, 1704575), (15, 1363660), (20, 1022745), (25, 818196), (30, 681830), (41, 498900), (50, 409098), (60, 340915), (75, 272732), (82, 249450), (100, 204549), (123, 166300), (150, 136366), (164, 124725), (205, 99780), (246, 83150), (300, 68183), (410, 49890), (492, 41575), (615, 33260), (820, 24945), (1025, 19956), (1230, 16630), (1663, 12300), (2050, 9978), (2460, 8315), (3075, 6652), (3326, 6150), (4100, 4989)]