64017520

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2333}}^1$

素因数の和:2367

約数の個数: 80

約数和(自身を含む): 173649600

約数和(自身を除く): 109632080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2333, 2744, 3430, 3920, 4666, 5488, 6860, 9332, 11665, 13720, 16331, 18664, 23330, 27440, 32662, 37328, 46660, 65324, 81655, 93320, 114317, 130648, 163310, 186640, 228634, 261296, 326620, 457268, 571585, 653240, 800219, 914536, 1143170, 1306480, 1600438, 1829072, 2286340, 3200876, 4001095, 4572680, 6401752, 8002190, 9145360, 12803504, 16004380, 32008760, 64017520]

約数ペア:

[(1, 64017520), (2, 32008760), (4, 16004380), (5, 12803504), (7, 9145360), (8, 8002190), (10, 6401752), (14, 4572680), (16, 4001095), (20, 3200876), (28, 2286340), (35, 1829072), (40, 1600438), (49, 1306480), (56, 1143170), (70, 914536), (80, 800219), (98, 653240), (112, 571585), (140, 457268), (196, 326620), (245, 261296), (280, 228634), (343, 186640), (392, 163310), (490, 130648), (560, 114317), (686, 93320), (784, 81655), (980, 65324), (1372, 46660), (1715, 37328), (1960, 32662), (2333, 27440), (2744, 23330), (3430, 18664), (3920, 16331), (4666, 13720), (5488, 11665), (6860, 9332)]