643290752

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20347}}^1$

素因数の和:20393

約数の個数: 64

約数和(自身を含む): 1452847200

約数和(自身を除く): 809556448

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 608, 832, 988, 1216, 1664, 1976, 2432, 3952, 7904, 15808, 20347, 31616, 40694, 81388, 162776, 264511, 325552, 386593, 529022, 651104, 773186, 1058044, 1302208, 1546372, 2116088, 2604416, 3092744, 4232176, 5025709, 6185488, 8464352, 10051418, 12370976, 16928704, 20102836, 24741952, 33857408, 40205672, 49483904, 80411344, 160822688, 321645376, 643290752]

約数ペア:

[(1, 643290752), (2, 321645376), (4, 160822688), (8, 80411344), (13, 49483904), (16, 40205672), (19, 33857408), (26, 24741952), (32, 20102836), (38, 16928704), (52, 12370976), (64, 10051418), (76, 8464352), (104, 6185488), (128, 5025709), (152, 4232176), (208, 3092744), (247, 2604416), (304, 2116088), (416, 1546372), (494, 1302208), (608, 1058044), (832, 773186), (988, 651104), (1216, 529022), (1664, 386593), (1976, 325552), (2432, 264511), (3952, 162776), (7904, 81388), (15808, 40694), (20347, 31616)]