80640720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2383}}^1$

素因数の和:2449

約数の個数: 120

約数和(自身を含む): 276696576

約数和(自身を除く): 196055856

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 120, 141, 144, 180, 188, 235, 240, 282, 360, 376, 423, 470, 564, 705, 720, 752, 846, 940, 1128, 1410, 1692, 1880, 2115, 2256, 2383, 2820, 3384, 3760, 4230, 4766, 5640, 6768, 7149, 8460, 9532, 11280, 11915, 14298, 16920, 19064, 21447, 23830, 28596, 33840, 35745, 38128, 42894, 47660, 57192, 71490, 85788, 95320, 107235, 112001, 114384, 142980, 171576, 190640, 214470, 224002, 285960, 336003, 343152, 428940, 448004, 560005, 571920, 672006, 857880, 896008, 1008009, 1120010, 1344012, 1680015, 1715760, 1792016, 2016018, 2240020, 2688024, 3360030, 4032036, 4480040, 5040045, 5376048, 6720060, 8064072, 8960080, 10080090, 13440120, 16128144, 20160180, 26880240, 40320360, 80640720]

約数ペア:

[(1, 80640720), (2, 40320360), (3, 26880240), (4, 20160180), (5, 16128144), (6, 13440120), (8, 10080090), (9, 8960080), (10, 8064072), (12, 6720060), (15, 5376048), (16, 5040045), (18, 4480040), (20, 4032036), (24, 3360030), (30, 2688024), (36, 2240020), (40, 2016018), (45, 1792016), (47, 1715760), (48, 1680015), (60, 1344012), (72, 1120010), (80, 1008009), (90, 896008), (94, 857880), (120, 672006), (141, 571920), (144, 560005), (180, 448004), (188, 428940), (235, 343152), (240, 336003), (282, 285960), (360, 224002), (376, 214470), (423, 190640), (470, 171576), (564, 142980), (705, 114384), (720, 112001), (752, 107235), (846, 95320), (940, 85788), (1128, 71490), (1410, 57192), (1692, 47660), (1880, 42894), (2115, 38128), (2256, 35745), (2383, 33840), (2820, 28596), (3384, 23830), (3760, 21447), (4230, 19064), (4766, 16920), (5640, 14298), (6768, 11915), (7149, 11280), (8460, 9532)]