80175780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2111}}^1$

素因数の和:2337

約数の個数: 72

約数和(自身を含む): 244468224

約数和(自身を除く): 164292444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1055, 1266, 1899, 2110, 2111, 2532, 3165, 3798, 4220, 4222, 6330, 6333, 7596, 8444, 9495, 10555, 12660, 12666, 18990, 18999, 21110, 25332, 31665, 37980, 37998, 42220, 63330, 75996, 94995, 126660, 189990, 379980, 445421, 890842, 1336263, 1781684, 2227105, 2672526, 4008789, 4454210, 5345052, 6681315, 8017578, 8908420, 13362630, 16035156, 20043945, 26725260, 40087890, 80175780]

約数ペア:

[(1, 80175780), (2, 40087890), (3, 26725260), (4, 20043945), (5, 16035156), (6, 13362630), (9, 8908420), (10, 8017578), (12, 6681315), (15, 5345052), (18, 4454210), (20, 4008789), (30, 2672526), (36, 2227105), (45, 1781684), (60, 1336263), (90, 890842), (180, 445421), (211, 379980), (422, 189990), (633, 126660), (844, 94995), (1055, 75996), (1266, 63330), (1899, 42220), (2110, 37998), (2111, 37980), (2532, 31665), (3165, 25332), (3798, 21110), (4220, 18999), (4222, 18990), (6330, 12666), (6333, 12660), (7596, 10555), (8444, 9495)]