12091720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 28531440

約数和(自身を除く): 16439720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 101, 146, 164, 202, 205, 292, 328, 365, 404, 410, 505, 584, 730, 808, 820, 1010, 1460, 1640, 2020, 2920, 2993, 4040, 4141, 5986, 7373, 8282, 11972, 14746, 14965, 16564, 20705, 23944, 29492, 29930, 33128, 36865, 41410, 58984, 59860, 73730, 82820, 119720, 147460, 165640, 294920, 302293, 604586, 1209172, 1511465, 2418344, 3022930, 6045860, 12091720]

約数ペア:

[(1, 12091720), (2, 6045860), (4, 3022930), (5, 2418344), (8, 1511465), (10, 1209172), (20, 604586), (40, 302293), (41, 294920), (73, 165640), (82, 147460), (101, 119720), (146, 82820), (164, 73730), (202, 59860), (205, 58984), (292, 41410), (328, 36865), (365, 33128), (404, 29930), (410, 29492), (505, 23944), (584, 20705), (730, 16564), (808, 14965), (820, 14746), (1010, 11972), (1460, 8282), (1640, 7373), (2020, 5986), (2920, 4141), (2993, 4040)]