281268780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{18979}}^1$

素因数の和:19023

約数の個数: 96

約数和(自身を含む): 892819200

約数和(自身を除く): 611550420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1482, 2470, 2964, 3705, 4940, 7410, 14820, 18979, 37958, 56937, 75916, 94895, 113874, 189790, 227748, 246727, 284685, 360601, 379580, 493454, 569370, 721202, 740181, 986908, 1081803, 1138740, 1233635, 1442404, 1480362, 1803005, 2163606, 2467270, 2960724, 3606010, 3700905, 4327212, 4687813, 4934540, 5409015, 7212020, 7401810, 9375626, 10818030, 14063439, 14803620, 18751252, 21636060, 23439065, 28126878, 46878130, 56253756, 70317195, 93756260, 140634390, 281268780]

約数ペア:

[(1, 281268780), (2, 140634390), (3, 93756260), (4, 70317195), (5, 56253756), (6, 46878130), (10, 28126878), (12, 23439065), (13, 21636060), (15, 18751252), (19, 14803620), (20, 14063439), (26, 10818030), (30, 9375626), (38, 7401810), (39, 7212020), (52, 5409015), (57, 4934540), (60, 4687813), (65, 4327212), (76, 3700905), (78, 3606010), (95, 2960724), (114, 2467270), (130, 2163606), (156, 1803005), (190, 1480362), (195, 1442404), (228, 1233635), (247, 1138740), (260, 1081803), (285, 986908), (380, 740181), (390, 721202), (494, 569370), (570, 493454), (741, 379580), (780, 360601), (988, 284685), (1140, 246727), (1235, 227748), (1482, 189790), (2470, 113874), (2964, 94895), (3705, 75916), (4940, 56937), (7410, 37958), (14820, 18979)]