20480520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1657}}^1$

素因数の和:1774

約数の個数: 64

約数和(自身を含む): 62075520

約数和(自身を除く): 41595000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1657, 2060, 2472, 3090, 3314, 4120, 4971, 6180, 6628, 8285, 9942, 12360, 13256, 16570, 19884, 24855, 33140, 39768, 49710, 66280, 99420, 170671, 198840, 341342, 512013, 682684, 853355, 1024026, 1365368, 1706710, 2048052, 2560065, 3413420, 4096104, 5120130, 6826840, 10240260, 20480520]

約数ペア:

[(1, 20480520), (2, 10240260), (3, 6826840), (4, 5120130), (5, 4096104), (6, 3413420), (8, 2560065), (10, 2048052), (12, 1706710), (15, 1365368), (20, 1024026), (24, 853355), (30, 682684), (40, 512013), (60, 341342), (103, 198840), (120, 170671), (206, 99420), (309, 66280), (412, 49710), (515, 39768), (618, 33140), (824, 24855), (1030, 19884), (1236, 16570), (1545, 13256), (1657, 12360), (2060, 9942), (2472, 8285), (3090, 6628), (3314, 6180), (4120, 4971)]