128339840

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:200

約数の個数: 128

約数和(自身を含む): 323356320

約数和(自身を除く): 195016480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 67, 73, 80, 82, 128, 134, 146, 160, 164, 205, 268, 292, 320, 328, 335, 365, 410, 536, 584, 640, 656, 670, 730, 820, 1072, 1168, 1312, 1340, 1460, 1640, 2144, 2336, 2624, 2680, 2747, 2920, 2993, 3280, 4288, 4672, 4891, 5248, 5360, 5494, 5840, 5986, 6560, 8576, 9344, 9782, 10720, 10988, 11680, 11972, 13120, 13735, 14965, 19564, 21440, 21976, 23360, 23944, 24455, 26240, 27470, 29930, 39128, 42880, 43952, 46720, 47888, 48910, 54940, 59860, 78256, 87904, 95776, 97820, 109880, 119720, 156512, 175808, 191552, 195640, 200531, 219760, 239440, 313024, 351616, 383104, 391280, 401062, 439520, 478880, 626048, 782560, 802124, 879040, 957760, 1002655, 1565120, 1604248, 1758080, 1915520, 2005310, 3130240, 3208496, 4010620, 6416992, 8021240, 12833984, 16042480, 25667968, 32084960, 64169920, 128339840]

約数ペア:

[(1, 128339840), (2, 64169920), (4, 32084960), (5, 25667968), (8, 16042480), (10, 12833984), (16, 8021240), (20, 6416992), (32, 4010620), (40, 3208496), (41, 3130240), (64, 2005310), (67, 1915520), (73, 1758080), (80, 1604248), (82, 1565120), (128, 1002655), (134, 957760), (146, 879040), (160, 802124), (164, 782560), (205, 626048), (268, 478880), (292, 439520), (320, 401062), (328, 391280), (335, 383104), (365, 351616), (410, 313024), (536, 239440), (584, 219760), (640, 200531), (656, 195640), (670, 191552), (730, 175808), (820, 156512), (1072, 119720), (1168, 109880), (1312, 97820), (1340, 95776), (1460, 87904), (1640, 78256), (2144, 59860), (2336, 54940), (2624, 48910), (2680, 47888), (2747, 46720), (2920, 43952), (2993, 42880), (3280, 39128), (4288, 29930), (4672, 27470), (4891, 26240), (5248, 24455), (5360, 23944), (5494, 23360), (5840, 21976), (5986, 21440), (6560, 19564), (8576, 14965), (9344, 13735), (9782, 13120), (10720, 11972), (10988, 11680)]