457827880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:311

約数の個数: 128

約数和(自身を含む): 1122232320

約数和(自身を除く): 664404440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 71, 86, 92, 115, 142, 163, 172, 184, 215, 230, 284, 326, 344, 355, 430, 460, 568, 652, 710, 815, 860, 920, 989, 1304, 1420, 1630, 1633, 1720, 1978, 2840, 3053, 3260, 3266, 3749, 3956, 4945, 6106, 6520, 6532, 7009, 7498, 7912, 8165, 9890, 11573, 12212, 13064, 14018, 14996, 15265, 16330, 18745, 19780, 23146, 24424, 28036, 29992, 30530, 32660, 35045, 37490, 39560, 46292, 56072, 57865, 61060, 65320, 70090, 70219, 74980, 92584, 115730, 122120, 140180, 140438, 149960, 161207, 231460, 266179, 280360, 280876, 322414, 351095, 462920, 497639, 532358, 561752, 644828, 702190, 806035, 995278, 1064716, 1289656, 1330895, 1404380, 1612070, 1990556, 2129432, 2488195, 2661790, 2808760, 3224140, 3981112, 4976390, 5323580, 6448280, 9952780, 10647160, 11445697, 19905560, 22891394, 45782788, 57228485, 91565576, 114456970, 228913940, 457827880]

約数ペア:

[(1, 457827880), (2, 228913940), (4, 114456970), (5, 91565576), (8, 57228485), (10, 45782788), (20, 22891394), (23, 19905560), (40, 11445697), (43, 10647160), (46, 9952780), (71, 6448280), (86, 5323580), (92, 4976390), (115, 3981112), (142, 3224140), (163, 2808760), (172, 2661790), (184, 2488195), (215, 2129432), (230, 1990556), (284, 1612070), (326, 1404380), (344, 1330895), (355, 1289656), (430, 1064716), (460, 995278), (568, 806035), (652, 702190), (710, 644828), (815, 561752), (860, 532358), (920, 497639), (989, 462920), (1304, 351095), (1420, 322414), (1630, 280876), (1633, 280360), (1720, 266179), (1978, 231460), (2840, 161207), (3053, 149960), (3260, 140438), (3266, 140180), (3749, 122120), (3956, 115730), (4945, 92584), (6106, 74980), (6520, 70219), (6532, 70090), (7009, 65320), (7498, 61060), (7912, 57865), (8165, 56072), (9890, 46292), (11573, 39560), (12212, 37490), (13064, 35045), (14018, 32660), (14996, 30530), (15265, 29992), (16330, 28036), (18745, 24424), (19780, 23146)]