78895480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 184615200

約数和(自身を除く): 105719720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 146, 164, 205, 292, 328, 365, 410, 584, 659, 730, 820, 1318, 1460, 1640, 2636, 2920, 2993, 3295, 5272, 5986, 6590, 11972, 13180, 14965, 23944, 26360, 27019, 29930, 48107, 54038, 59860, 96214, 108076, 119720, 135095, 192428, 216152, 240535, 270190, 384856, 481070, 540380, 962140, 1080760, 1924280, 1972387, 3944774, 7889548, 9861935, 15779096, 19723870, 39447740, 78895480]

約数ペア:

[(1, 78895480), (2, 39447740), (4, 19723870), (5, 15779096), (8, 9861935), (10, 7889548), (20, 3944774), (40, 1972387), (41, 1924280), (73, 1080760), (82, 962140), (146, 540380), (164, 481070), (205, 384856), (292, 270190), (328, 240535), (365, 216152), (410, 192428), (584, 135095), (659, 119720), (730, 108076), (820, 96214), (1318, 59860), (1460, 54038), (1640, 48107), (2636, 29930), (2920, 27019), (2993, 26360), (3295, 23944), (5272, 14965), (5986, 13180), (6590, 11972)]