16439640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19571}}^1$

素因数の和:19592

約数の個数: 64

約数和(自身を含む): 56367360

約数和(自身を除く): 39927720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 19571, 39142, 58713, 78284, 97855, 117426, 136997, 156568, 195710, 234852, 273994, 293565, 391420, 410991, 469704, 547988, 587130, 684985, 782840, 821982, 1095976, 1174260, 1369970, 1643964, 2054955, 2348520, 2739940, 3287928, 4109910, 5479880, 8219820, 16439640]

約数ペア:

[(1, 16439640), (2, 8219820), (3, 5479880), (4, 4109910), (5, 3287928), (6, 2739940), (7, 2348520), (8, 2054955), (10, 1643964), (12, 1369970), (14, 1174260), (15, 1095976), (20, 821982), (21, 782840), (24, 684985), (28, 587130), (30, 547988), (35, 469704), (40, 410991), (42, 391420), (56, 293565), (60, 273994), (70, 234852), (84, 195710), (105, 156568), (120, 136997), (140, 117426), (168, 97855), (210, 78284), (280, 58713), (420, 39142), (840, 19571)]