51380520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4157}}^1$

素因数の和:4274

約数の個数: 64

約数和(自身を含む): 155675520

約数和(自身を除く): 104295000

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, 2060, 2472, 3090, 4120, 4157, 6180, 8314, 12360, 12471, 16628, 20785, 24942, 33256, 41570, 49884, 62355, 83140, 99768, 124710, 166280, 249420, 428171, 498840, 856342, 1284513, 1712684, 2140855, 2569026, 3425368, 4281710, 5138052, 6422565, 8563420, 10276104, 12845130, 17126840, 25690260, 51380520]

約数ペア:

[(1, 51380520), (2, 25690260), (3, 17126840), (4, 12845130), (5, 10276104), (6, 8563420), (8, 6422565), (10, 5138052), (12, 4281710), (15, 3425368), (20, 2569026), (24, 2140855), (30, 1712684), (40, 1284513), (60, 856342), (103, 498840), (120, 428171), (206, 249420), (309, 166280), (412, 124710), (515, 99768), (618, 83140), (824, 62355), (1030, 49884), (1236, 41570), (1545, 33256), (2060, 24942), (2472, 20785), (3090, 16628), (4120, 12471), (4157, 12360), (6180, 8314)]