19909264

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:935

約数の個数: 40

約数和(自身を含む): 41168000

約数和(自身を除く): 21258736

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 79, 152, 158, 304, 316, 632, 829, 1264, 1501, 1658, 3002, 3316, 6004, 6632, 12008, 13264, 15751, 24016, 31502, 63004, 65491, 126008, 130982, 252016, 261964, 523928, 1047856, 1244329, 2488658, 4977316, 9954632, 19909264]

約数ペア:

[(1, 19909264), (2, 9954632), (4, 4977316), (8, 2488658), (16, 1244329), (19, 1047856), (38, 523928), (76, 261964), (79, 252016), (152, 130982), (158, 126008), (304, 65491), (316, 63004), (632, 31502), (829, 24016), (1264, 15751), (1501, 13264), (1658, 12008), (3002, 6632), (3316, 6004)]