64443964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 125850816

約数和(自身を除く): 61406852

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 167, 181, 334, 362, 533, 668, 724, 1066, 2132, 2171, 2353, 4342, 4706, 6847, 7421, 8684, 9412, 13694, 14842, 27388, 29684, 30227, 60454, 89011, 96473, 120908, 178022, 192946, 356044, 385892, 392951, 785902, 1239307, 1571804, 2478614, 4957228, 16110991, 32221982, 64443964]

約数ペア:

[(1, 64443964), (2, 32221982), (4, 16110991), (13, 4957228), (26, 2478614), (41, 1571804), (52, 1239307), (82, 785902), (164, 392951), (167, 385892), (181, 356044), (334, 192946), (362, 178022), (533, 120908), (668, 96473), (724, 89011), (1066, 60454), (2132, 30227), (2171, 29684), (2353, 27388), (4342, 14842), (4706, 13694), (6847, 9412), (7421, 8684)]