18290720

素因数分解:

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

素因数の和:2362

約数の個数: 72

約数和(自身を含む): 50288364

約数和(自身を除く): 31997644

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 2333, 3920, 4666, 7840, 9332, 11665, 16331, 18664, 23330, 32662, 37328, 46660, 65324, 74656, 81655, 93320, 114317, 130648, 163310, 186640, 228634, 261296, 326620, 373280, 457268, 522592, 571585, 653240, 914536, 1143170, 1306480, 1829072, 2286340, 2612960, 3658144, 4572680, 9145360, 18290720]

約数ペア:

[(1, 18290720), (2, 9145360), (4, 4572680), (5, 3658144), (7, 2612960), (8, 2286340), (10, 1829072), (14, 1306480), (16, 1143170), (20, 914536), (28, 653240), (32, 571585), (35, 522592), (40, 457268), (49, 373280), (56, 326620), (70, 261296), (80, 228634), (98, 186640), (112, 163310), (140, 130648), (160, 114317), (196, 93320), (224, 81655), (245, 74656), (280, 65324), (392, 46660), (490, 37328), (560, 32662), (784, 23330), (980, 18664), (1120, 16331), (1568, 11665), (1960, 9332), (2333, 7840), (3920, 4666)]