18681680

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{797}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 43637832

約数和(自身を除く): 24956152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 797, 1172, 1465, 1594, 2344, 2930, 3188, 3985, 4688, 5860, 6376, 7970, 11720, 12752, 15940, 23440, 31880, 63760, 233521, 467042, 934084, 1167605, 1868168, 2335210, 3736336, 4670420, 9340840, 18681680]

約数ペア:

[(1, 18681680), (2, 9340840), (4, 4670420), (5, 3736336), (8, 2335210), (10, 1868168), (16, 1167605), (20, 934084), (40, 467042), (80, 233521), (293, 63760), (586, 31880), (797, 23440), (1172, 15940), (1465, 12752), (1594, 11720), (2344, 7970), (2930, 6376), (3188, 5860), (3985, 4688)]