78498980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11443}}^1$

素因数の和:11473

約数の個数: 48

約数和(自身を含む): 192259200

約数和(自身を除く): 113760220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11443, 22886, 45772, 57215, 80101, 114430, 160202, 228860, 320404, 400505, 560707, 801010, 1121414, 1602020, 2242828, 2803535, 3924949, 5607070, 7849898, 11214140, 15699796, 19624745, 39249490, 78498980]

約数ペア:

[(1, 78498980), (2, 39249490), (4, 19624745), (5, 15699796), (7, 11214140), (10, 7849898), (14, 5607070), (20, 3924949), (28, 2803535), (35, 2242828), (49, 1602020), (70, 1121414), (98, 801010), (140, 560707), (196, 400505), (245, 320404), (343, 228860), (490, 160202), (686, 114430), (980, 80101), (1372, 57215), (1715, 45772), (3430, 22886), (6860, 11443)]