28942680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18553}}^1$

素因数の和:18580

約数の個数: 64

約数和(自身を含む): 93512160

約数和(自身を除く): 64569480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18553, 37106, 55659, 74212, 92765, 111318, 148424, 185530, 222636, 241189, 278295, 371060, 445272, 482378, 556590, 723567, 742120, 964756, 1113180, 1205945, 1447134, 1929512, 2226360, 2411890, 2894268, 3617835, 4823780, 5788536, 7235670, 9647560, 14471340, 28942680]

約数ペア:

[(1, 28942680), (2, 14471340), (3, 9647560), (4, 7235670), (5, 5788536), (6, 4823780), (8, 3617835), (10, 2894268), (12, 2411890), (13, 2226360), (15, 1929512), (20, 1447134), (24, 1205945), (26, 1113180), (30, 964756), (39, 742120), (40, 723567), (52, 556590), (60, 482378), (65, 445272), (78, 371060), (104, 278295), (120, 241189), (130, 222636), (156, 185530), (195, 148424), (260, 111318), (312, 92765), (390, 74212), (520, 55659), (780, 37106), (1560, 18553)]