31878960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6991}}^1$

素因数の和:7026

約数の個数: 80

約数和(自身を含む): 104040960

約数和(自身を除く): 72162000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 6991, 13982, 20973, 27964, 34955, 41946, 55928, 69910, 83892, 104865, 111856, 132829, 139820, 167784, 209730, 265658, 279640, 335568, 398487, 419460, 531316, 559280, 664145, 796974, 838920, 1062632, 1328290, 1593948, 1677840, 1992435, 2125264, 2656580, 3187896, 3984870, 5313160, 6375792, 7969740, 10626320, 15939480, 31878960]

約数ペア:

[(1, 31878960), (2, 15939480), (3, 10626320), (4, 7969740), (5, 6375792), (6, 5313160), (8, 3984870), (10, 3187896), (12, 2656580), (15, 2125264), (16, 1992435), (19, 1677840), (20, 1593948), (24, 1328290), (30, 1062632), (38, 838920), (40, 796974), (48, 664145), (57, 559280), (60, 531316), (76, 419460), (80, 398487), (95, 335568), (114, 279640), (120, 265658), (152, 209730), (190, 167784), (228, 139820), (240, 132829), (285, 111856), (304, 104865), (380, 83892), (456, 69910), (570, 55928), (760, 41946), (912, 34955), (1140, 27964), (1520, 20973), (2280, 13982), (4560, 6991)]