219696540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{757}}^1$

素因数の和:1467

約数の個数: 96

約数和(自身を含む): 704976384

約数和(自身を除く): 485279844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 691, 757, 1382, 1514, 2073, 2271, 2764, 3028, 3455, 3785, 4146, 4542, 4837, 5299, 6910, 7570, 8292, 9084, 9674, 10365, 10598, 11355, 13820, 14511, 15140, 15897, 19348, 20730, 21196, 22710, 24185, 26495, 29022, 31794, 41460, 45420, 48370, 52990, 58044, 63588, 72555, 79485, 96740, 105980, 145110, 158970, 290220, 317940, 523087, 1046174, 1569261, 2092348, 2615435, 3138522, 3661609, 5230870, 6277044, 7323218, 7846305, 10461740, 10984827, 14646436, 15692610, 18308045, 21969654, 31385220, 36616090, 43939308, 54924135, 73232180, 109848270, 219696540]

約数ペア:

[(1, 219696540), (2, 109848270), (3, 73232180), (4, 54924135), (5, 43939308), (6, 36616090), (7, 31385220), (10, 21969654), (12, 18308045), (14, 15692610), (15, 14646436), (20, 10984827), (21, 10461740), (28, 7846305), (30, 7323218), (35, 6277044), (42, 5230870), (60, 3661609), (70, 3138522), (84, 2615435), (105, 2092348), (140, 1569261), (210, 1046174), (420, 523087), (691, 317940), (757, 290220), (1382, 158970), (1514, 145110), (2073, 105980), (2271, 96740), (2764, 79485), (3028, 72555), (3455, 63588), (3785, 58044), (4146, 52990), (4542, 48370), (4837, 45420), (5299, 41460), (6910, 31794), (7570, 29022), (8292, 26495), (9084, 24185), (9674, 22710), (10365, 21196), (10598, 20730), (11355, 19348), (13820, 15897), (14511, 15140)]