18843880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{379}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 46785600

約数和(自身を除く): 27941720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 113, 220, 226, 379, 440, 452, 565, 758, 904, 1130, 1243, 1516, 1895, 2260, 2486, 3032, 3790, 4169, 4520, 4972, 6215, 7580, 8338, 9944, 12430, 15160, 16676, 20845, 24860, 33352, 41690, 42827, 49720, 83380, 85654, 166760, 171308, 214135, 342616, 428270, 471097, 856540, 942194, 1713080, 1884388, 2355485, 3768776, 4710970, 9421940, 18843880]

約数ペア:

[(1, 18843880), (2, 9421940), (4, 4710970), (5, 3768776), (8, 2355485), (10, 1884388), (11, 1713080), (20, 942194), (22, 856540), (40, 471097), (44, 428270), (55, 342616), (88, 214135), (110, 171308), (113, 166760), (220, 85654), (226, 83380), (379, 49720), (440, 42827), (452, 41690), (565, 33352), (758, 24860), (904, 20845), (1130, 16676), (1243, 15160), (1516, 12430), (1895, 9944), (2260, 8338), (2486, 7580), (3032, 6215), (3790, 4972), (4169, 4520)]