81363880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6803}}^1$

素因数の和:6850

約数の個数: 64

約数和(自身を含む): 205752960

約数和(自身を除く): 124389080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2990, 5980, 6803, 11960, 13606, 27212, 34015, 54424, 68030, 88439, 136060, 156469, 176878, 272120, 312938, 353756, 442195, 625876, 707512, 782345, 884390, 1251752, 1564690, 1768780, 2034097, 3129380, 3537560, 4068194, 6258760, 8136388, 10170485, 16272776, 20340970, 40681940, 81363880]

約数ペア:

[(1, 81363880), (2, 40681940), (4, 20340970), (5, 16272776), (8, 10170485), (10, 8136388), (13, 6258760), (20, 4068194), (23, 3537560), (26, 3129380), (40, 2034097), (46, 1768780), (52, 1564690), (65, 1251752), (92, 884390), (104, 782345), (115, 707512), (130, 625876), (184, 442195), (230, 353756), (260, 312938), (299, 272120), (460, 176878), (520, 156469), (598, 136060), (920, 88439), (1196, 68030), (1495, 54424), (2392, 34015), (2990, 27212), (5980, 13606), (6803, 11960)]