68211760

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 164989440

約数和(自身を除く): 96777680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 79, 80, 86, 158, 172, 215, 251, 316, 344, 395, 430, 502, 632, 688, 790, 860, 1004, 1255, 1264, 1580, 1720, 2008, 2510, 3160, 3397, 3440, 4016, 5020, 6320, 6794, 10040, 10793, 13588, 16985, 19829, 20080, 21586, 27176, 33970, 39658, 43172, 53965, 54352, 67940, 79316, 86344, 99145, 107930, 135880, 158632, 172688, 198290, 215860, 271760, 317264, 396580, 431720, 793160, 852647, 863440, 1586320, 1705294, 3410588, 4263235, 6821176, 8526470, 13642352, 17052940, 34105880, 68211760]

約数ペア:

[(1, 68211760), (2, 34105880), (4, 17052940), (5, 13642352), (8, 8526470), (10, 6821176), (16, 4263235), (20, 3410588), (40, 1705294), (43, 1586320), (79, 863440), (80, 852647), (86, 793160), (158, 431720), (172, 396580), (215, 317264), (251, 271760), (316, 215860), (344, 198290), (395, 172688), (430, 158632), (502, 135880), (632, 107930), (688, 99145), (790, 86344), (860, 79316), (1004, 67940), (1255, 54352), (1264, 53965), (1580, 43172), (1720, 39658), (2008, 33970), (2510, 27176), (3160, 21586), (3397, 20080), (3440, 19829), (4016, 16985), (5020, 13588), (6320, 10793), (6794, 10040)]