15780720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1399}}^1$

素因数の和:1462

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 34216080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1399, 1410, 1880, 2256, 2798, 2820, 3760, 4197, 5596, 5640, 6995, 8394, 11192, 11280, 13990, 16788, 20985, 22384, 27980, 33576, 41970, 55960, 65753, 67152, 83940, 111920, 131506, 167880, 197259, 263012, 328765, 335760, 394518, 526024, 657530, 789036, 986295, 1052048, 1315060, 1578072, 1972590, 2630120, 3156144, 3945180, 5260240, 7890360, 15780720]

約数ペア:

[(1, 15780720), (2, 7890360), (3, 5260240), (4, 3945180), (5, 3156144), (6, 2630120), (8, 1972590), (10, 1578072), (12, 1315060), (15, 1052048), (16, 986295), (20, 789036), (24, 657530), (30, 526024), (40, 394518), (47, 335760), (48, 328765), (60, 263012), (80, 197259), (94, 167880), (120, 131506), (141, 111920), (188, 83940), (235, 67152), (240, 65753), (282, 55960), (376, 41970), (470, 33576), (564, 27980), (705, 22384), (752, 20985), (940, 16788), (1128, 13990), (1399, 11280), (1410, 11192), (1880, 8394), (2256, 6995), (2798, 5640), (2820, 5596), (3760, 4197)]