145746640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{397}}^1$

素因数の和:776

約数の個数: 80

約数和(自身を含む): 366882768

約数和(自身を除く): 221136128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 353, 397, 520, 706, 794, 1040, 1412, 1588, 1765, 1985, 2824, 3176, 3530, 3970, 4589, 5161, 5648, 6352, 7060, 7940, 9178, 10322, 14120, 15880, 18356, 20644, 22945, 25805, 28240, 31760, 36712, 41288, 45890, 51610, 73424, 82576, 91780, 103220, 140141, 183560, 206440, 280282, 367120, 412880, 560564, 700705, 1121128, 1401410, 1821833, 2242256, 2802820, 3643666, 5605640, 7287332, 9109165, 11211280, 14574664, 18218330, 29149328, 36436660, 72873320, 145746640]

約数ペア:

[(1, 145746640), (2, 72873320), (4, 36436660), (5, 29149328), (8, 18218330), (10, 14574664), (13, 11211280), (16, 9109165), (20, 7287332), (26, 5605640), (40, 3643666), (52, 2802820), (65, 2242256), (80, 1821833), (104, 1401410), (130, 1121128), (208, 700705), (260, 560564), (353, 412880), (397, 367120), (520, 280282), (706, 206440), (794, 183560), (1040, 140141), (1412, 103220), (1588, 91780), (1765, 82576), (1985, 73424), (2824, 51610), (3176, 45890), (3530, 41288), (3970, 36712), (4589, 31760), (5161, 28240), (5648, 25805), (6352, 22945), (7060, 20644), (7940, 18356), (9178, 15880), (10322, 14120)]