71878520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 198720000

約数和(自身を除く): 126841480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 59, 70, 76, 95, 118, 133, 140, 152, 190, 229, 236, 266, 280, 295, 380, 413, 458, 472, 532, 590, 665, 760, 826, 916, 1064, 1121, 1145, 1180, 1330, 1603, 1652, 1832, 2065, 2242, 2290, 2360, 2660, 3206, 3304, 4130, 4351, 4484, 4580, 5320, 5605, 6412, 7847, 8015, 8260, 8702, 8968, 9160, 11210, 12824, 13511, 15694, 16030, 16520, 17404, 21755, 22420, 27022, 30457, 31388, 32060, 34808, 39235, 43510, 44840, 54044, 60914, 62776, 64120, 67555, 78470, 87020, 94577, 108088, 121828, 135110, 152285, 156940, 174040, 189154, 243656, 256709, 270220, 304570, 313880, 378308, 472885, 513418, 540440, 609140, 756616, 945770, 1026836, 1218280, 1283545, 1796963, 1891540, 2053672, 2567090, 3593926, 3783080, 5134180, 7187852, 8984815, 10268360, 14375704, 17969630, 35939260, 71878520]

約数ペア:

[(1, 71878520), (2, 35939260), (4, 17969630), (5, 14375704), (7, 10268360), (8, 8984815), (10, 7187852), (14, 5134180), (19, 3783080), (20, 3593926), (28, 2567090), (35, 2053672), (38, 1891540), (40, 1796963), (56, 1283545), (59, 1218280), (70, 1026836), (76, 945770), (95, 756616), (118, 609140), (133, 540440), (140, 513418), (152, 472885), (190, 378308), (229, 313880), (236, 304570), (266, 270220), (280, 256709), (295, 243656), (380, 189154), (413, 174040), (458, 156940), (472, 152285), (532, 135110), (590, 121828), (665, 108088), (760, 94577), (826, 87020), (916, 78470), (1064, 67555), (1121, 64120), (1145, 62776), (1180, 60914), (1330, 54044), (1603, 44840), (1652, 43510), (1832, 39235), (2065, 34808), (2242, 32060), (2290, 31388), (2360, 30457), (2660, 27022), (3206, 22420), (3304, 21755), (4130, 17404), (4351, 16520), (4484, 16030), (4580, 15694), (5320, 13511), (5605, 12824), (6412, 11210), (7847, 9160), (8015, 8968), (8260, 8702)]