18720360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:515

約数の個数: 96

約数和(自身を含む): 61425000

約数和(自身を除く): 42704640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 149, 180, 298, 349, 360, 447, 596, 698, 745, 894, 1047, 1192, 1341, 1396, 1490, 1745, 1788, 2094, 2235, 2682, 2792, 2980, 3141, 3490, 3576, 4188, 4470, 5235, 5364, 5960, 6282, 6705, 6980, 8376, 8940, 10470, 10728, 12564, 13410, 13960, 15705, 17880, 20940, 25128, 26820, 31410, 41880, 52001, 53640, 62820, 104002, 125640, 156003, 208004, 260005, 312006, 416008, 468009, 520010, 624012, 780015, 936018, 1040020, 1248024, 1560030, 1872036, 2080040, 2340045, 3120060, 3744072, 4680090, 6240120, 9360180, 18720360]

約数ペア:

[(1, 18720360), (2, 9360180), (3, 6240120), (4, 4680090), (5, 3744072), (6, 3120060), (8, 2340045), (9, 2080040), (10, 1872036), (12, 1560030), (15, 1248024), (18, 1040020), (20, 936018), (24, 780015), (30, 624012), (36, 520010), (40, 468009), (45, 416008), (60, 312006), (72, 260005), (90, 208004), (120, 156003), (149, 125640), (180, 104002), (298, 62820), (349, 53640), (360, 52001), (447, 41880), (596, 31410), (698, 26820), (745, 25128), (894, 20940), (1047, 17880), (1192, 15705), (1341, 13960), (1396, 13410), (1490, 12564), (1745, 10728), (1788, 10470), (2094, 8940), (2235, 8376), (2682, 6980), (2792, 6705), (2980, 6282), (3141, 5960), (3490, 5364), (3576, 5235), (4188, 4470)]