199811120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 505333728

約数和(自身を除く): 305522608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 113, 115, 124, 155, 184, 226, 230, 248, 310, 368, 452, 460, 496, 565, 620, 713, 904, 920, 961, 1130, 1240, 1426, 1808, 1840, 1922, 2260, 2480, 2599, 2852, 3503, 3565, 3844, 4520, 4805, 5198, 5704, 7006, 7130, 7688, 9040, 9610, 10396, 11408, 12995, 14012, 14260, 15376, 17515, 19220, 20792, 22103, 25990, 28024, 28520, 35030, 38440, 41584, 44206, 51980, 56048, 57040, 70060, 76880, 80569, 88412, 103960, 108593, 110515, 140120, 161138, 176824, 207920, 217186, 221030, 280240, 322276, 353648, 402845, 434372, 442060, 542965, 644552, 805690, 868744, 884120, 1085930, 1289104, 1611380, 1737488, 1768240, 2171860, 2497639, 3222760, 4343720, 4995278, 6445520, 8687440, 9990556, 12488195, 19981112, 24976390, 39962224, 49952780, 99905560, 199811120]

約数ペア:

[(1, 199811120), (2, 99905560), (4, 49952780), (5, 39962224), (8, 24976390), (10, 19981112), (16, 12488195), (20, 9990556), (23, 8687440), (31, 6445520), (40, 4995278), (46, 4343720), (62, 3222760), (80, 2497639), (92, 2171860), (113, 1768240), (115, 1737488), (124, 1611380), (155, 1289104), (184, 1085930), (226, 884120), (230, 868744), (248, 805690), (310, 644552), (368, 542965), (452, 442060), (460, 434372), (496, 402845), (565, 353648), (620, 322276), (713, 280240), (904, 221030), (920, 217186), (961, 207920), (1130, 176824), (1240, 161138), (1426, 140120), (1808, 110515), (1840, 108593), (1922, 103960), (2260, 88412), (2480, 80569), (2599, 76880), (2852, 70060), (3503, 57040), (3565, 56048), (3844, 51980), (4520, 44206), (4805, 41584), (5198, 38440), (5704, 35030), (7006, 28520), (7130, 28024), (7688, 25990), (9040, 22103), (9610, 20792), (10396, 19220), (11408, 17515), (12995, 15376), (14012, 14260)]