1814780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 4251744

約数和(自身を除く): 2436964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 113, 146, 220, 226, 292, 365, 452, 565, 730, 803, 1130, 1243, 1460, 1606, 2260, 2486, 3212, 4015, 4972, 6215, 8030, 8249, 12430, 16060, 16498, 24860, 32996, 41245, 82490, 90739, 164980, 181478, 362956, 453695, 907390, 1814780]

約数ペア:

[(1, 1814780), (2, 907390), (4, 453695), (5, 362956), (10, 181478), (11, 164980), (20, 90739), (22, 82490), (44, 41245), (55, 32996), (73, 24860), (110, 16498), (113, 16060), (146, 12430), (220, 8249), (226, 8030), (292, 6215), (365, 4972), (452, 4015), (565, 3212), (730, 2486), (803, 2260), (1130, 1606), (1243, 1460)]