28377580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18427}}^1$

素因数の和:18454

約数の個数: 48

約数和(自身を含む): 74301696

約数和(自身を除く): 45924116

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18427, 36854, 73708, 92135, 128989, 184270, 202697, 257978, 368540, 405394, 515956, 644945, 810788, 1013485, 1289890, 1418879, 2026970, 2579780, 2837758, 4053940, 5675516, 7094395, 14188790, 28377580]

約数ペア:

[(1, 28377580), (2, 14188790), (4, 7094395), (5, 5675516), (7, 4053940), (10, 2837758), (11, 2579780), (14, 2026970), (20, 1418879), (22, 1289890), (28, 1013485), (35, 810788), (44, 644945), (55, 515956), (70, 405394), (77, 368540), (110, 257978), (140, 202697), (154, 184270), (220, 128989), (308, 92135), (385, 73708), (770, 36854), (1540, 18427)]