198670640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2381}}^1$

素因数の和:2550

約数の個数: 80

約数和(自身を含む): 531662400

約数和(自身を除く): 332991760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 1043, 1192, 1490, 2086, 2381, 2384, 2980, 4172, 4762, 5215, 5960, 8344, 9524, 10430, 11905, 11920, 16667, 16688, 19048, 20860, 23810, 33334, 38096, 41720, 47620, 66668, 83335, 83440, 95240, 133336, 166670, 190480, 266672, 333340, 354769, 666680, 709538, 1333360, 1419076, 1773845, 2483383, 2838152, 3547690, 4966766, 5676304, 7095380, 9933532, 12416915, 14190760, 19867064, 24833830, 28381520, 39734128, 49667660, 99335320, 198670640]

約数ペア:

[(1, 198670640), (2, 99335320), (4, 49667660), (5, 39734128), (7, 28381520), (8, 24833830), (10, 19867064), (14, 14190760), (16, 12416915), (20, 9933532), (28, 7095380), (35, 5676304), (40, 4966766), (56, 3547690), (70, 2838152), (80, 2483383), (112, 1773845), (140, 1419076), (149, 1333360), (280, 709538), (298, 666680), (560, 354769), (596, 333340), (745, 266672), (1043, 190480), (1192, 166670), (1490, 133336), (2086, 95240), (2381, 83440), (2384, 83335), (2980, 66668), (4172, 47620), (4762, 41720), (5215, 38096), (5960, 33334), (8344, 23810), (9524, 20860), (10430, 19048), (11905, 16688), (11920, 16667)]