42990640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{997}}^1$

素因数の和:1035

約数の個数: 120

約数和(自身を含む): 126969552

約数和(自身を除く): 83978912

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 997, 1078, 1232, 1540, 1960, 1994, 2156, 2695, 3080, 3920, 3988, 4312, 4985, 5390, 6160, 6979, 7976, 8624, 9970, 10780, 10967, 13958, 15952, 19940, 21560, 21934, 27916, 34895, 39880, 43120, 43868, 48853, 54835, 55832, 69790, 76769, 79760, 87736, 97706, 109670, 111664, 139580, 153538, 175472, 195412, 219340, 244265, 279160, 307076, 383845, 390824, 438680, 488530, 537383, 558320, 614152, 767690, 781648, 877360, 977060, 1074766, 1228304, 1535380, 1954120, 2149532, 2686915, 3070760, 3908240, 4299064, 5373830, 6141520, 8598128, 10747660, 21495320, 42990640]

約数ペア:

[(1, 42990640), (2, 21495320), (4, 10747660), (5, 8598128), (7, 6141520), (8, 5373830), (10, 4299064), (11, 3908240), (14, 3070760), (16, 2686915), (20, 2149532), (22, 1954120), (28, 1535380), (35, 1228304), (40, 1074766), (44, 977060), (49, 877360), (55, 781648), (56, 767690), (70, 614152), (77, 558320), (80, 537383), (88, 488530), (98, 438680), (110, 390824), (112, 383845), (140, 307076), (154, 279160), (176, 244265), (196, 219340), (220, 195412), (245, 175472), (280, 153538), (308, 139580), (385, 111664), (392, 109670), (440, 97706), (490, 87736), (539, 79760), (560, 76769), (616, 69790), (770, 55832), (784, 54835), (880, 48853), (980, 43868), (997, 43120), (1078, 39880), (1232, 34895), (1540, 27916), (1960, 21934), (1994, 21560), (2156, 19940), (2695, 15952), (3080, 13958), (3920, 10967), (3988, 10780), (4312, 9970), (4985, 8624), (5390, 7976), (6160, 6979)]