98891440

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1997}}^1$

素因数の和:2629

約数の個数: 40

約数和(自身を含む): 230409360

約数和(自身を除く): 131517920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1238, 1997, 2476, 3095, 3994, 4952, 6190, 7988, 9904, 9985, 12380, 15976, 19970, 24760, 31952, 39940, 49520, 79880, 159760, 1236143, 2472286, 4944572, 6180715, 9889144, 12361430, 19778288, 24722860, 49445720, 98891440]

約数ペア:

[(1, 98891440), (2, 49445720), (4, 24722860), (5, 19778288), (8, 12361430), (10, 9889144), (16, 6180715), (20, 4944572), (40, 2472286), (80, 1236143), (619, 159760), (1238, 79880), (1997, 49520), (2476, 39940), (3095, 31952), (3994, 24760), (4952, 19970), (6190, 15976), (7988, 12380), (9904, 9985)]