78643900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1171

約数の個数: 72

約数和(自身を含む): 183988224

約数和(自身を除く): 105344324

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 31, 46, 50, 62, 92, 100, 115, 124, 155, 230, 310, 460, 575, 620, 713, 775, 1103, 1150, 1426, 1550, 2206, 2300, 2852, 3100, 3565, 4412, 5515, 7130, 11030, 14260, 17825, 22060, 25369, 27575, 34193, 35650, 50738, 55150, 68386, 71300, 101476, 110300, 126845, 136772, 170965, 253690, 341930, 507380, 634225, 683860, 786439, 854825, 1268450, 1572878, 1709650, 2536900, 3145756, 3419300, 3932195, 7864390, 15728780, 19660975, 39321950, 78643900]

約数ペア:

[(1, 78643900), (2, 39321950), (4, 19660975), (5, 15728780), (10, 7864390), (20, 3932195), (23, 3419300), (25, 3145756), (31, 2536900), (46, 1709650), (50, 1572878), (62, 1268450), (92, 854825), (100, 786439), (115, 683860), (124, 634225), (155, 507380), (230, 341930), (310, 253690), (460, 170965), (575, 136772), (620, 126845), (713, 110300), (775, 101476), (1103, 71300), (1150, 68386), (1426, 55150), (1550, 50738), (2206, 35650), (2300, 34193), (2852, 27575), (3100, 25369), (3565, 22060), (4412, 17825), (5515, 14260), (7130, 11030)]