40720640

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1097}}^1$

素因数の和:1147

約数の個数: 72

約数和(自身を含む): 100994040

約数和(自身を除く): 60273400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 580, 640, 928, 1097, 1160, 1280, 1856, 2194, 2320, 3712, 4388, 4640, 5485, 7424, 8776, 9280, 10970, 17552, 18560, 21940, 31813, 35104, 37120, 43880, 63626, 70208, 87760, 127252, 140416, 159065, 175520, 254504, 280832, 318130, 351040, 509008, 636260, 702080, 1018016, 1272520, 1404160, 2036032, 2545040, 4072064, 5090080, 8144128, 10180160, 20360320, 40720640]

約数ペア:

[(1, 40720640), (2, 20360320), (4, 10180160), (5, 8144128), (8, 5090080), (10, 4072064), (16, 2545040), (20, 2036032), (29, 1404160), (32, 1272520), (40, 1018016), (58, 702080), (64, 636260), (80, 509008), (116, 351040), (128, 318130), (145, 280832), (160, 254504), (232, 175520), (256, 159065), (290, 140416), (320, 127252), (464, 87760), (580, 70208), (640, 63626), (928, 43880), (1097, 37120), (1160, 35104), (1280, 31813), (1856, 21940), (2194, 18560), (2320, 17552), (3712, 10970), (4388, 9280), (4640, 8776), (5485, 7424)]