215104040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{4231}}^1$

素因数の和:4314

約数の個数: 64

約数和(自身を含む): 511902720

約数和(自身を除く): 296798680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 620, 820, 1240, 1271, 1640, 2542, 4231, 5084, 6355, 8462, 10168, 12710, 16924, 21155, 25420, 33848, 42310, 50840, 84620, 131161, 169240, 173471, 262322, 346942, 524644, 655805, 693884, 867355, 1049288, 1311610, 1387768, 1734710, 2623220, 3469420, 5246440, 5377601, 6938840, 10755202, 21510404, 26888005, 43020808, 53776010, 107552020, 215104040]

約数ペア:

[(1, 215104040), (2, 107552020), (4, 53776010), (5, 43020808), (8, 26888005), (10, 21510404), (20, 10755202), (31, 6938840), (40, 5377601), (41, 5246440), (62, 3469420), (82, 2623220), (124, 1734710), (155, 1387768), (164, 1311610), (205, 1049288), (248, 867355), (310, 693884), (328, 655805), (410, 524644), (620, 346942), (820, 262322), (1240, 173471), (1271, 169240), (1640, 131161), (2542, 84620), (4231, 50840), (5084, 42310), (6355, 33848), (8462, 25420), (10168, 21155), (12710, 16924)]