19560720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:712

約数の個数: 80

約数和(自身を含む): 61156800

約数和(自身を除く): 41596080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 149, 240, 298, 447, 547, 596, 745, 894, 1094, 1192, 1490, 1641, 1788, 2188, 2235, 2384, 2735, 2980, 3282, 3576, 4376, 4470, 5470, 5960, 6564, 7152, 8205, 8752, 8940, 10940, 11920, 13128, 16410, 17880, 21880, 26256, 32820, 35760, 43760, 65640, 81503, 131280, 163006, 244509, 326012, 407515, 489018, 652024, 815030, 978036, 1222545, 1304048, 1630060, 1956072, 2445090, 3260120, 3912144, 4890180, 6520240, 9780360, 19560720]

約数ペア:

[(1, 19560720), (2, 9780360), (3, 6520240), (4, 4890180), (5, 3912144), (6, 3260120), (8, 2445090), (10, 1956072), (12, 1630060), (15, 1304048), (16, 1222545), (20, 978036), (24, 815030), (30, 652024), (40, 489018), (48, 407515), (60, 326012), (80, 244509), (120, 163006), (149, 131280), (240, 81503), (298, 65640), (447, 43760), (547, 35760), (596, 32820), (745, 26256), (894, 21880), (1094, 17880), (1192, 16410), (1490, 13128), (1641, 11920), (1788, 10940), (2188, 8940), (2235, 8752), (2384, 8205), (2735, 7152), (2980, 6564), (3282, 5960), (3576, 5470), (4376, 4470)]