1981280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:112

約数の個数: 96

約数和(自身を含む): 5624640

約数和(自身を除く): 3643360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 61, 70, 80, 112, 116, 122, 140, 145, 160, 203, 224, 232, 244, 280, 290, 305, 406, 427, 464, 488, 560, 580, 610, 812, 854, 928, 976, 1015, 1120, 1160, 1220, 1624, 1708, 1769, 1952, 2030, 2135, 2320, 2440, 3248, 3416, 3538, 4060, 4270, 4640, 4880, 6496, 6832, 7076, 8120, 8540, 8845, 9760, 12383, 13664, 14152, 16240, 17080, 17690, 24766, 28304, 32480, 34160, 35380, 49532, 56608, 61915, 68320, 70760, 99064, 123830, 141520, 198128, 247660, 283040, 396256, 495320, 990640, 1981280]

約数ペア:

[(1, 1981280), (2, 990640), (4, 495320), (5, 396256), (7, 283040), (8, 247660), (10, 198128), (14, 141520), (16, 123830), (20, 99064), (28, 70760), (29, 68320), (32, 61915), (35, 56608), (40, 49532), (56, 35380), (58, 34160), (61, 32480), (70, 28304), (80, 24766), (112, 17690), (116, 17080), (122, 16240), (140, 14152), (145, 13664), (160, 12383), (203, 9760), (224, 8845), (232, 8540), (244, 8120), (280, 7076), (290, 6832), (305, 6496), (406, 4880), (427, 4640), (464, 4270), (488, 4060), (560, 3538), (580, 3416), (610, 3248), (812, 2440), (854, 2320), (928, 2135), (976, 2030), (1015, 1952), (1120, 1769), (1160, 1708), (1220, 1624)]