18944368

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{617}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 39082320

約数和(自身を除く): 20137952

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 101, 152, 202, 304, 404, 617, 808, 1234, 1616, 1919, 2468, 3838, 4936, 7676, 9872, 11723, 15352, 23446, 30704, 46892, 62317, 93784, 124634, 187568, 249268, 498536, 997072, 1184023, 2368046, 4736092, 9472184, 18944368]

約数ペア:

[(1, 18944368), (2, 9472184), (4, 4736092), (8, 2368046), (16, 1184023), (19, 997072), (38, 498536), (76, 249268), (101, 187568), (152, 124634), (202, 93784), (304, 62317), (404, 46892), (617, 30704), (808, 23446), (1234, 15352), (1616, 11723), (1919, 9872), (2468, 7676), (3838, 4936)]