1311987760

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{207593}}^1$

素因数の和:207685

約数の個数: 40

約数和(自身を含む): 3088998720

約数和(自身を除く): 1777010960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 207593, 415186, 830372, 1037965, 1660744, 2075930, 3321488, 4151860, 8303720, 16399847, 16607440, 32799694, 65599388, 81999235, 131198776, 163998470, 262397552, 327996940, 655993880, 1311987760]

約数ペア:

[(1, 1311987760), (2, 655993880), (4, 327996940), (5, 262397552), (8, 163998470), (10, 131198776), (16, 81999235), (20, 65599388), (40, 32799694), (79, 16607440), (80, 16399847), (158, 8303720), (316, 4151860), (395, 3321488), (632, 2075930), (790, 1660744), (1264, 1037965), (1580, 830372), (3160, 415186), (6320, 207593)]