128617240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2591}}^1$

素因数の和:2692

約数の個数: 64

約数和(自身を含む): 310728960

約数和(自身を除く): 182111720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 584, 680, 730, 1241, 1460, 2482, 2591, 2920, 4964, 5182, 6205, 9928, 10364, 12410, 12955, 20728, 24820, 25910, 44047, 49640, 51820, 88094, 103640, 176188, 189143, 220235, 352376, 378286, 440470, 756572, 880940, 945715, 1513144, 1761880, 1891430, 3215431, 3782860, 6430862, 7565720, 12861724, 16077155, 25723448, 32154310, 64308620, 128617240]

約数ペア:

[(1, 128617240), (2, 64308620), (4, 32154310), (5, 25723448), (8, 16077155), (10, 12861724), (17, 7565720), (20, 6430862), (34, 3782860), (40, 3215431), (68, 1891430), (73, 1761880), (85, 1513144), (136, 945715), (146, 880940), (170, 756572), (292, 440470), (340, 378286), (365, 352376), (584, 220235), (680, 189143), (730, 176188), (1241, 103640), (1460, 88094), (2482, 51820), (2591, 49640), (2920, 44047), (4964, 25910), (5182, 24820), (6205, 20728), (9928, 12955), (10364, 12410)]