78846280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 183617280

約数和(自身を除く): 104771000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 131, 164, 205, 262, 328, 367, 410, 524, 655, 734, 820, 1048, 1310, 1468, 1640, 1835, 2620, 2936, 3670, 5240, 5371, 7340, 10742, 14680, 15047, 21484, 26855, 30094, 42968, 48077, 53710, 60188, 75235, 96154, 107420, 120376, 150470, 192308, 214840, 240385, 300940, 384616, 480770, 601880, 961540, 1923080, 1971157, 3942314, 7884628, 9855785, 15769256, 19711570, 39423140, 78846280]

約数ペア:

[(1, 78846280), (2, 39423140), (4, 19711570), (5, 15769256), (8, 9855785), (10, 7884628), (20, 3942314), (40, 1971157), (41, 1923080), (82, 961540), (131, 601880), (164, 480770), (205, 384616), (262, 300940), (328, 240385), (367, 214840), (410, 192308), (524, 150470), (655, 120376), (734, 107420), (820, 96154), (1048, 75235), (1310, 60188), (1468, 53710), (1640, 48077), (1835, 42968), (2620, 30094), (2936, 26855), (3670, 21484), (5240, 15047), (5371, 14680), (7340, 10742)]