251565984

素因数分解:

$2^5\times 3^2\times {\mathrm{53}}^1\times {\mathrm{16481}}^1$

素因数の和:16550

約数の個数: 72

約数和(自身を含む): 728932932

約数和(自身を除く): 477366948

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 53, 72, 96, 106, 144, 159, 212, 288, 318, 424, 477, 636, 848, 954, 1272, 1696, 1908, 2544, 3816, 5088, 7632, 15264, 16481, 32962, 49443, 65924, 98886, 131848, 148329, 197772, 263696, 296658, 395544, 527392, 593316, 791088, 873493, 1186632, 1582176, 1746986, 2373264, 2620479, 3493972, 4746528, 5240958, 6987944, 7861437, 10481916, 13975888, 15722874, 20963832, 27951776, 31445748, 41927664, 62891496, 83855328, 125782992, 251565984]

約数ペア:

[(1, 251565984), (2, 125782992), (3, 83855328), (4, 62891496), (6, 41927664), (8, 31445748), (9, 27951776), (12, 20963832), (16, 15722874), (18, 13975888), (24, 10481916), (32, 7861437), (36, 6987944), (48, 5240958), (53, 4746528), (72, 3493972), (96, 2620479), (106, 2373264), (144, 1746986), (159, 1582176), (212, 1186632), (288, 873493), (318, 791088), (424, 593316), (477, 527392), (636, 395544), (848, 296658), (954, 263696), (1272, 197772), (1696, 148329), (1908, 131848), (2544, 98886), (3816, 65924), (5088, 49443), (7632, 32962), (15264, 16481)]