128535820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:528

約数の個数: 96

約数和(自身を含む): 323164800

約数和(自身を除く): 194628980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 343, 410, 457, 490, 574, 686, 820, 914, 980, 1148, 1372, 1435, 1715, 1828, 2009, 2285, 2870, 3199, 3430, 4018, 4570, 5740, 6398, 6860, 8036, 9140, 10045, 12796, 14063, 15995, 18737, 20090, 22393, 28126, 31990, 37474, 40180, 44786, 56252, 63980, 70315, 74948, 89572, 93685, 111965, 131159, 140630, 156751, 187370, 223930, 262318, 281260, 313502, 374740, 447860, 524636, 627004, 655795, 783755, 918113, 1311590, 1567510, 1836226, 2623180, 3135020, 3672452, 4590565, 6426791, 9181130, 12853582, 18362260, 25707164, 32133955, 64267910, 128535820]

約数ペア:

[(1, 128535820), (2, 64267910), (4, 32133955), (5, 25707164), (7, 18362260), (10, 12853582), (14, 9181130), (20, 6426791), (28, 4590565), (35, 3672452), (41, 3135020), (49, 2623180), (70, 1836226), (82, 1567510), (98, 1311590), (140, 918113), (164, 783755), (196, 655795), (205, 627004), (245, 524636), (287, 447860), (343, 374740), (410, 313502), (457, 281260), (490, 262318), (574, 223930), (686, 187370), (820, 156751), (914, 140630), (980, 131159), (1148, 111965), (1372, 93685), (1435, 89572), (1715, 74948), (1828, 70315), (2009, 63980), (2285, 56252), (2870, 44786), (3199, 40180), (3430, 37474), (4018, 31990), (4570, 28126), (5740, 22393), (6398, 20090), (6860, 18737), (8036, 15995), (9140, 14063), (10045, 12796)]