90425780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1373}}^1$

素因数の和:1508

約数の個数: 48

約数和(自身を含む): 197361360

約数和(自身を除く): 106935580

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 356, 370, 445, 740, 890, 1373, 1780, 2746, 3293, 5492, 6586, 6865, 13172, 13730, 16465, 27460, 32930, 50801, 65860, 101602, 122197, 203204, 244394, 254005, 488788, 508010, 610985, 1016020, 1221970, 2443940, 4521289, 9042578, 18085156, 22606445, 45212890, 90425780]

約数ペア:

[(1, 90425780), (2, 45212890), (4, 22606445), (5, 18085156), (10, 9042578), (20, 4521289), (37, 2443940), (74, 1221970), (89, 1016020), (148, 610985), (178, 508010), (185, 488788), (356, 254005), (370, 244394), (445, 203204), (740, 122197), (890, 101602), (1373, 65860), (1780, 50801), (2746, 32930), (3293, 27460), (5492, 16465), (6586, 13730), (6865, 13172)]