28280120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5843}}^1$

素因数の和:5876

約数の個数: 48

約数和(自身を含む): 69952680

約数和(自身を除く): 41672560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 5843, 11686, 23372, 29215, 46744, 58430, 64273, 116860, 128546, 233720, 257092, 321365, 514184, 642730, 707003, 1285460, 1414006, 2570920, 2828012, 3535015, 5656024, 7070030, 14140060, 28280120]

約数ペア:

[(1, 28280120), (2, 14140060), (4, 7070030), (5, 5656024), (8, 3535015), (10, 2828012), (11, 2570920), (20, 1414006), (22, 1285460), (40, 707003), (44, 642730), (55, 514184), (88, 321365), (110, 257092), (121, 233720), (220, 128546), (242, 116860), (440, 64273), (484, 58430), (605, 46744), (968, 29215), (1210, 23372), (2420, 11686), (4840, 5843)]