20858528040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24831581}}^1$

素因数の和:24831602

約数の個数: 64

約数和(自身を含む): 71514956160

約数和(自身を除く): 50656428120

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, 24831581, 49663162, 74494743, 99326324, 124157905, 148989486, 173821067, 198652648, 248315810, 297978972, 347642134, 372473715, 496631620, 521463201, 595957944, 695284268, 744947430, 869105335, 993263240, 1042926402, 1390568536, 1489894860, 1738210670, 2085852804, 2607316005, 2979789720, 3476421340, 4171705608, 5214632010, 6952842680, 10429264020, 20858528040]

約数ペア:

[(1, 20858528040), (2, 10429264020), (3, 6952842680), (4, 5214632010), (5, 4171705608), (6, 3476421340), (7, 2979789720), (8, 2607316005), (10, 2085852804), (12, 1738210670), (14, 1489894860), (15, 1390568536), (20, 1042926402), (21, 993263240), (24, 869105335), (28, 744947430), (30, 695284268), (35, 595957944), (40, 521463201), (42, 496631620), (56, 372473715), (60, 347642134), (70, 297978972), (84, 248315810), (105, 198652648), (120, 173821067), (140, 148989486), (168, 124157905), (210, 99326324), (280, 74494743), (420, 49663162), (840, 24831581)]