199461520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2521}}^1$

素因数の和:2600

約数の個数: 80

約数和(自身を含む): 495361152

約数和(自身を除く): 295899632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 43, 46, 80, 86, 92, 115, 172, 184, 215, 230, 344, 368, 430, 460, 688, 860, 920, 989, 1720, 1840, 1978, 2521, 3440, 3956, 4945, 5042, 7912, 9890, 10084, 12605, 15824, 19780, 20168, 25210, 39560, 40336, 50420, 57983, 79120, 100840, 108403, 115966, 201680, 216806, 231932, 289915, 433612, 463864, 542015, 579830, 867224, 927728, 1084030, 1159660, 1734448, 2168060, 2319320, 2493269, 4336120, 4638640, 4986538, 8672240, 9973076, 12466345, 19946152, 24932690, 39892304, 49865380, 99730760, 199461520]

約数ペア:

[(1, 199461520), (2, 99730760), (4, 49865380), (5, 39892304), (8, 24932690), (10, 19946152), (16, 12466345), (20, 9973076), (23, 8672240), (40, 4986538), (43, 4638640), (46, 4336120), (80, 2493269), (86, 2319320), (92, 2168060), (115, 1734448), (172, 1159660), (184, 1084030), (215, 927728), (230, 867224), (344, 579830), (368, 542015), (430, 463864), (460, 433612), (688, 289915), (860, 231932), (920, 216806), (989, 201680), (1720, 115966), (1840, 108403), (1978, 100840), (2521, 79120), (3440, 57983), (3956, 50420), (4945, 40336), (5042, 39560), (7912, 25210), (9890, 20168), (10084, 19780), (12605, 15824)]