640149615

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:494

約数の個数: 128

約数和(自身を含む): 1386547200

約数和(自身を除く): 746397585

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 95, 101, 105, 133, 135, 171, 189, 285, 303, 315, 353, 399, 505, 513, 665, 707, 855, 909, 945, 1059, 1197, 1515, 1765, 1919, 1995, 2121, 2471, 2565, 2727, 3177, 3535, 3591, 4545, 5295, 5757, 5985, 6363, 6707, 7413, 9531, 9595, 10605, 12355, 13433, 13635, 15885, 17271, 17955, 19089, 20121, 22239, 28785, 31815, 33535, 35653, 37065, 40299, 46949, 47655, 51813, 60363, 66717, 67165, 86355, 95445, 100605, 106959, 111195, 120897, 140847, 178265, 181089, 201495, 234745, 249571, 259065, 301815, 320877, 333585, 362691, 422541, 534795, 604485, 677407, 704235, 748713, 905445, 962631, 1247855, 1267623, 1604385, 1813455, 2032221, 2112705, 2246139, 3387035, 3743565, 4741849, 4813155, 6096663, 6338115, 6738417, 10161105, 11230695, 14225547, 18289989, 23709245, 30483315, 33692085, 42676641, 71127735, 91449945, 128029923, 213383205, 640149615]

約数ペア:

[(1, 640149615), (3, 213383205), (5, 128029923), (7, 91449945), (9, 71127735), (15, 42676641), (19, 33692085), (21, 30483315), (27, 23709245), (35, 18289989), (45, 14225547), (57, 11230695), (63, 10161105), (95, 6738417), (101, 6338115), (105, 6096663), (133, 4813155), (135, 4741849), (171, 3743565), (189, 3387035), (285, 2246139), (303, 2112705), (315, 2032221), (353, 1813455), (399, 1604385), (505, 1267623), (513, 1247855), (665, 962631), (707, 905445), (855, 748713), (909, 704235), (945, 677407), (1059, 604485), (1197, 534795), (1515, 422541), (1765, 362691), (1919, 333585), (1995, 320877), (2121, 301815), (2471, 259065), (2565, 249571), (2727, 234745), (3177, 201495), (3535, 181089), (3591, 178265), (4545, 140847), (5295, 120897), (5757, 111195), (5985, 106959), (6363, 100605), (6707, 95445), (7413, 86355), (9531, 67165), (9595, 66717), (10605, 60363), (12355, 51813), (13433, 47655), (13635, 46949), (15885, 40299), (17271, 37065), (17955, 35653), (19089, 33535), (20121, 31815), (22239, 28785)]