18855040

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1733}}^1$

素因数の和:1769

約数の個数: 64

約数和(自身を含む): 47754360

約数和(自身を除く): 28899320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 1733, 2176, 2720, 3466, 5440, 6932, 8665, 10880, 13864, 17330, 27728, 29461, 34660, 55456, 58922, 69320, 110912, 117844, 138640, 147305, 221824, 235688, 277280, 294610, 471376, 554560, 589220, 942752, 1109120, 1178440, 1885504, 2356880, 3771008, 4713760, 9427520, 18855040]

約数ペア:

[(1, 18855040), (2, 9427520), (4, 4713760), (5, 3771008), (8, 2356880), (10, 1885504), (16, 1178440), (17, 1109120), (20, 942752), (32, 589220), (34, 554560), (40, 471376), (64, 294610), (68, 277280), (80, 235688), (85, 221824), (128, 147305), (136, 138640), (160, 117844), (170, 110912), (272, 69320), (320, 58922), (340, 55456), (544, 34660), (640, 29461), (680, 27728), (1088, 17330), (1360, 13864), (1733, 10880), (2176, 8665), (2720, 6932), (3466, 5440)]