66438180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4447}}^1$

素因数の和:4545

約数の個数: 72

約数和(自身を含む): 204003072

約数和(自身を除く): 137564892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4447, 4980, 7470, 8894, 13341, 14940, 17788, 22235, 26682, 40023, 44470, 53364, 66705, 80046, 88940, 133410, 160092, 200115, 266820, 369101, 400230, 738202, 800460, 1107303, 1476404, 1845505, 2214606, 3321909, 3691010, 4429212, 5536515, 6643818, 7382020, 11073030, 13287636, 16609545, 22146060, 33219090, 66438180]

約数ペア:

[(1, 66438180), (2, 33219090), (3, 22146060), (4, 16609545), (5, 13287636), (6, 11073030), (9, 7382020), (10, 6643818), (12, 5536515), (15, 4429212), (18, 3691010), (20, 3321909), (30, 2214606), (36, 1845505), (45, 1476404), (60, 1107303), (83, 800460), (90, 738202), (166, 400230), (180, 369101), (249, 266820), (332, 200115), (415, 160092), (498, 133410), (747, 88940), (830, 80046), (996, 66705), (1245, 53364), (1494, 44470), (1660, 40023), (2490, 26682), (2988, 22235), (3735, 17788), (4447, 14940), (4980, 13341), (7470, 8894)]