11720820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11491}}^1$

素因数の和:11520

約数の個数: 48

約数和(自身を含む): 34751808

約数和(自身を除く): 23030988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 11491, 22982, 34473, 45964, 57455, 68946, 114910, 137892, 172365, 195347, 229820, 344730, 390694, 586041, 689460, 781388, 976735, 1172082, 1953470, 2344164, 2930205, 3906940, 5860410, 11720820]

約数ペア:

[(1, 11720820), (2, 5860410), (3, 3906940), (4, 2930205), (5, 2344164), (6, 1953470), (10, 1172082), (12, 976735), (15, 781388), (17, 689460), (20, 586041), (30, 390694), (34, 344730), (51, 229820), (60, 195347), (68, 172365), (85, 137892), (102, 114910), (170, 68946), (204, 57455), (255, 45964), (340, 34473), (510, 22982), (1020, 11491)]