64163920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 156485520

約数和(自身を除く): 92321600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 53, 74, 80, 106, 148, 185, 212, 265, 296, 370, 409, 424, 530, 592, 740, 818, 848, 1060, 1480, 1636, 1961, 2045, 2120, 2960, 3272, 3922, 4090, 4240, 6544, 7844, 8180, 9805, 15133, 15688, 16360, 19610, 21677, 30266, 31376, 32720, 39220, 43354, 60532, 75665, 78440, 86708, 108385, 121064, 151330, 156880, 173416, 216770, 242128, 302660, 346832, 433540, 605320, 802049, 867080, 1210640, 1604098, 1734160, 3208196, 4010245, 6416392, 8020490, 12832784, 16040980, 32081960, 64163920]

約数ペア:

[(1, 64163920), (2, 32081960), (4, 16040980), (5, 12832784), (8, 8020490), (10, 6416392), (16, 4010245), (20, 3208196), (37, 1734160), (40, 1604098), (53, 1210640), (74, 867080), (80, 802049), (106, 605320), (148, 433540), (185, 346832), (212, 302660), (265, 242128), (296, 216770), (370, 173416), (409, 156880), (424, 151330), (530, 121064), (592, 108385), (740, 86708), (818, 78440), (848, 75665), (1060, 60532), (1480, 43354), (1636, 39220), (1961, 32720), (2045, 31376), (2120, 30266), (2960, 21677), (3272, 19610), (3922, 16360), (4090, 15688), (4240, 15133), (6544, 9805), (7844, 8180)]