18744440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 51710400

約数和(自身を除く): 32965960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 29, 40, 44, 52, 55, 58, 65, 88, 104, 110, 113, 116, 130, 143, 145, 220, 226, 232, 260, 286, 290, 319, 377, 440, 452, 520, 565, 572, 580, 638, 715, 754, 904, 1130, 1144, 1160, 1243, 1276, 1430, 1469, 1508, 1595, 1885, 2260, 2486, 2552, 2860, 2938, 3016, 3190, 3277, 3770, 4147, 4520, 4972, 5720, 5876, 6215, 6380, 6554, 7345, 7540, 8294, 9944, 11752, 12430, 12760, 13108, 14690, 15080, 16159, 16385, 16588, 20735, 24860, 26216, 29380, 32318, 32770, 33176, 36047, 41470, 42601, 49720, 58760, 64636, 65540, 72094, 80795, 82940, 85202, 129272, 131080, 144188, 161590, 165880, 170404, 180235, 213005, 288376, 323180, 340808, 360470, 426010, 468611, 646360, 720940, 852020, 937222, 1441880, 1704040, 1874444, 2343055, 3748888, 4686110, 9372220, 18744440]

約数ペア:

[(1, 18744440), (2, 9372220), (4, 4686110), (5, 3748888), (8, 2343055), (10, 1874444), (11, 1704040), (13, 1441880), (20, 937222), (22, 852020), (26, 720940), (29, 646360), (40, 468611), (44, 426010), (52, 360470), (55, 340808), (58, 323180), (65, 288376), (88, 213005), (104, 180235), (110, 170404), (113, 165880), (116, 161590), (130, 144188), (143, 131080), (145, 129272), (220, 85202), (226, 82940), (232, 80795), (260, 72094), (286, 65540), (290, 64636), (319, 58760), (377, 49720), (440, 42601), (452, 41470), (520, 36047), (565, 33176), (572, 32770), (580, 32318), (638, 29380), (715, 26216), (754, 24860), (904, 20735), (1130, 16588), (1144, 16385), (1160, 16159), (1243, 15080), (1276, 14690), (1430, 13108), (1469, 12760), (1508, 12430), (1595, 11752), (1885, 9944), (2260, 8294), (2486, 7540), (2552, 7345), (2860, 6554), (2938, 6380), (3016, 6215), (3190, 5876), (3277, 5720), (3770, 4972), (4147, 4520)]