51488240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^3\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 80

約数和(自身を含む): 128161440

約数和(自身を除く): 76673200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 131, 136, 170, 262, 272, 289, 340, 524, 578, 655, 680, 1048, 1156, 1310, 1360, 1445, 2096, 2227, 2312, 2620, 2890, 4454, 4624, 4913, 5240, 5780, 8908, 9826, 10480, 11135, 11560, 17816, 19652, 22270, 23120, 24565, 35632, 37859, 39304, 44540, 49130, 75718, 78608, 89080, 98260, 151436, 178160, 189295, 196520, 302872, 378590, 393040, 605744, 643603, 757180, 1287206, 1514360, 2574412, 3028720, 3218015, 5148824, 6436030, 10297648, 12872060, 25744120, 51488240]

約数ペア:

[(1, 51488240), (2, 25744120), (4, 12872060), (5, 10297648), (8, 6436030), (10, 5148824), (16, 3218015), (17, 3028720), (20, 2574412), (34, 1514360), (40, 1287206), (68, 757180), (80, 643603), (85, 605744), (131, 393040), (136, 378590), (170, 302872), (262, 196520), (272, 189295), (289, 178160), (340, 151436), (524, 98260), (578, 89080), (655, 78608), (680, 75718), (1048, 49130), (1156, 44540), (1310, 39304), (1360, 37859), (1445, 35632), (2096, 24565), (2227, 23120), (2312, 22270), (2620, 19652), (2890, 17816), (4454, 11560), (4624, 11135), (4913, 10480), (5240, 9826), (5780, 8908)]