20898937045

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{3169}}^1$

素因数の和:3458

約数の個数: 64

約数和(自身を含む): 30967603200

約数和(自身を除く): 10068666155

約数列:

[1, 5, 7, 19, 35, 47, 95, 133, 211, 235, 329, 665, 893, 1055, 1477, 1645, 3169, 4009, 4465, 6251, 7385, 9917, 15845, 20045, 22183, 28063, 31255, 49585, 60211, 69419, 110915, 140315, 148943, 188423, 301055, 347095, 421477, 668659, 744715, 942115, 1042601, 1318961, 2107385, 2829917, 3343295, 4680613, 5213005, 6594805, 12704521, 14149585, 19809419, 23403065, 31426973, 63522605, 88931647, 99047095, 157134865, 219988811, 444658235, 597112487, 1099944055, 2985562435, 4179787409, 20898937045]

約数ペア:

[(1, 20898937045), (5, 4179787409), (7, 2985562435), (19, 1099944055), (35, 597112487), (47, 444658235), (95, 219988811), (133, 157134865), (211, 99047095), (235, 88931647), (329, 63522605), (665, 31426973), (893, 23403065), (1055, 19809419), (1477, 14149585), (1645, 12704521), (3169, 6594805), (4009, 5213005), (4465, 4680613), (6251, 3343295), (7385, 2829917), (9917, 2107385), (15845, 1318961), (20045, 1042601), (22183, 942115), (28063, 744715), (31255, 668659), (49585, 421477), (60211, 347095), (69419, 301055), (110915, 188423), (140315, 148943)]