78467240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{449}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 188082000

約数和(自身を除く): 109614760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 257, 340, 449, 514, 680, 898, 1028, 1285, 1796, 2056, 2245, 2570, 3592, 4369, 4490, 5140, 7633, 8738, 8980, 10280, 15266, 17476, 17960, 21845, 30532, 34952, 38165, 43690, 61064, 76330, 87380, 115393, 152660, 174760, 230786, 305320, 461572, 576965, 923144, 1153930, 1961681, 2307860, 3923362, 4615720, 7846724, 9808405, 15693448, 19616810, 39233620, 78467240]

約数ペア:

[(1, 78467240), (2, 39233620), (4, 19616810), (5, 15693448), (8, 9808405), (10, 7846724), (17, 4615720), (20, 3923362), (34, 2307860), (40, 1961681), (68, 1153930), (85, 923144), (136, 576965), (170, 461572), (257, 305320), (340, 230786), (449, 174760), (514, 152660), (680, 115393), (898, 87380), (1028, 76330), (1285, 61064), (1796, 43690), (2056, 38165), (2245, 34952), (2570, 30532), (3592, 21845), (4369, 17960), (4490, 17476), (5140, 15266), (7633, 10280), (8738, 8980)]