398480758

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 693116928

約数和(自身を除く): 294636170

約数列:

[1, 2, 13, 26, 31, 47, 62, 67, 94, 134, 157, 314, 403, 611, 806, 871, 1222, 1457, 1742, 2041, 2077, 2914, 3149, 4082, 4154, 4867, 6298, 7379, 9734, 10519, 14758, 18941, 21038, 27001, 37882, 40937, 54002, 63271, 81874, 95927, 97619, 126542, 136747, 191854, 195238, 228749, 273494, 326089, 457498, 494393, 652178, 988786, 1269047, 2538094, 2973737, 4239157, 5947474, 6427109, 8478314, 12854218, 15326183, 30652366, 199240379, 398480758]

約数ペア:

[(1, 398480758), (2, 199240379), (13, 30652366), (26, 15326183), (31, 12854218), (47, 8478314), (62, 6427109), (67, 5947474), (94, 4239157), (134, 2973737), (157, 2538094), (314, 1269047), (403, 988786), (611, 652178), (806, 494393), (871, 457498), (1222, 326089), (1457, 273494), (1742, 228749), (2041, 195238), (2077, 191854), (2914, 136747), (3149, 126542), (4082, 97619), (4154, 95927), (4867, 81874), (6298, 63271), (7379, 54002), (9734, 40937), (10519, 37882), (14758, 27001), (18941, 21038)]