19487760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81199}}^1$

素因数の和:81215

約数の個数: 40

約数和(自身を含む): 60412800

約数和(自身を除く): 40925040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81199, 162398, 243597, 324796, 405995, 487194, 649592, 811990, 974388, 1217985, 1299184, 1623980, 1948776, 2435970, 3247960, 3897552, 4871940, 6495920, 9743880, 19487760]

約数ペア:

[(1, 19487760), (2, 9743880), (3, 6495920), (4, 4871940), (5, 3897552), (6, 3247960), (8, 2435970), (10, 1948776), (12, 1623980), (15, 1299184), (16, 1217985), (20, 974388), (24, 811990), (30, 649592), (40, 487194), (48, 405995), (60, 324796), (80, 243597), (120, 162398), (240, 81199)]