20168994820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{157349}}^1$

素因数の和:157417

約数の個数: 96

約数和(自身を含む): 49961772000

約数和(自身を除く): 29792777180

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 29, 34, 52, 58, 65, 68, 85, 116, 130, 145, 170, 221, 260, 290, 340, 377, 442, 493, 580, 754, 884, 986, 1105, 1508, 1885, 1972, 2210, 2465, 3770, 4420, 4930, 6409, 7540, 9860, 12818, 25636, 32045, 64090, 128180, 157349, 314698, 629396, 786745, 1573490, 2045537, 2674933, 3146980, 4091074, 4563121, 5349866, 8182148, 9126242, 10227685, 10699732, 13374665, 18252484, 20455370, 22815605, 26749330, 34774129, 40910740, 45631210, 53498660, 59320573, 69548258, 77573057, 91262420, 118641146, 139096516, 155146114, 173870645, 237282292, 296602865, 310292228, 347741290, 387865285, 593205730, 695482580, 775730570, 1008449741, 1186411460, 1551461140, 2016899482, 4033798964, 5042248705, 10084497410, 20168994820]

約数ペア:

[(1, 20168994820), (2, 10084497410), (4, 5042248705), (5, 4033798964), (10, 2016899482), (13, 1551461140), (17, 1186411460), (20, 1008449741), (26, 775730570), (29, 695482580), (34, 593205730), (52, 387865285), (58, 347741290), (65, 310292228), (68, 296602865), (85, 237282292), (116, 173870645), (130, 155146114), (145, 139096516), (170, 118641146), (221, 91262420), (260, 77573057), (290, 69548258), (340, 59320573), (377, 53498660), (442, 45631210), (493, 40910740), (580, 34774129), (754, 26749330), (884, 22815605), (986, 20455370), (1105, 18252484), (1508, 13374665), (1885, 10699732), (1972, 10227685), (2210, 9126242), (2465, 8182148), (3770, 5349866), (4420, 4563121), (4930, 4091074), (6409, 3146980), (7540, 2674933), (9860, 2045537), (12818, 1573490), (25636, 786745), (32045, 629396), (64090, 314698), (128180, 157349)]