19859640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{991}}^1$

素因数の和:1172

約数の個数: 64

約数和(自身を含む): 59996160

約数和(自身を除く): 40136520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 167, 334, 501, 668, 835, 991, 1002, 1336, 1670, 1982, 2004, 2505, 2973, 3340, 3964, 4008, 4955, 5010, 5946, 6680, 7928, 9910, 10020, 11892, 14865, 19820, 20040, 23784, 29730, 39640, 59460, 118920, 165497, 330994, 496491, 661988, 827485, 992982, 1323976, 1654970, 1985964, 2482455, 3309940, 3971928, 4964910, 6619880, 9929820, 19859640]

約数ペア:

[(1, 19859640), (2, 9929820), (3, 6619880), (4, 4964910), (5, 3971928), (6, 3309940), (8, 2482455), (10, 1985964), (12, 1654970), (15, 1323976), (20, 992982), (24, 827485), (30, 661988), (40, 496491), (60, 330994), (120, 165497), (167, 118920), (334, 59460), (501, 39640), (668, 29730), (835, 23784), (991, 20040), (1002, 19820), (1336, 14865), (1670, 11892), (1982, 10020), (2004, 9910), (2505, 7928), (2973, 6680), (3340, 5946), (3964, 5010), (4008, 4955)]