64418340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21911}}^1$

素因数の和:21937

約数の個数: 72

約数和(自身を含む): 209829312

約数和(自身を除く): 145410972

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 21911, 43822, 65733, 87644, 109555, 131466, 153377, 219110, 262932, 306754, 328665, 438220, 460131, 613508, 657330, 766885, 920262, 1073639, 1314660, 1533770, 1840524, 2147278, 2300655, 3067540, 3220917, 4294556, 4601310, 5368195, 6441834, 9202620, 10736390, 12883668, 16104585, 21472780, 32209170, 64418340]

約数ペア:

[(1, 64418340), (2, 32209170), (3, 21472780), (4, 16104585), (5, 12883668), (6, 10736390), (7, 9202620), (10, 6441834), (12, 5368195), (14, 4601310), (15, 4294556), (20, 3220917), (21, 3067540), (28, 2300655), (30, 2147278), (35, 1840524), (42, 1533770), (49, 1314660), (60, 1073639), (70, 920262), (84, 766885), (98, 657330), (105, 613508), (140, 460131), (147, 438220), (196, 328665), (210, 306754), (245, 262932), (294, 219110), (420, 153377), (490, 131466), (588, 109555), (735, 87644), (980, 65733), (1470, 43822), (2940, 21911)]