71358280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8221}}^1$

素因数の和:8270

約数の個数: 64

約数和(自身を含む): 189434880

約数和(自身を除く): 118076600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8221, 8680, 16442, 32884, 41105, 57547, 65768, 82210, 115094, 164420, 230188, 254851, 287735, 328840, 460376, 509702, 575470, 1019404, 1150940, 1274255, 1783957, 2038808, 2301880, 2548510, 3567914, 5097020, 7135828, 8919785, 10194040, 14271656, 17839570, 35679140, 71358280]

約数ペア:

[(1, 71358280), (2, 35679140), (4, 17839570), (5, 14271656), (7, 10194040), (8, 8919785), (10, 7135828), (14, 5097020), (20, 3567914), (28, 2548510), (31, 2301880), (35, 2038808), (40, 1783957), (56, 1274255), (62, 1150940), (70, 1019404), (124, 575470), (140, 509702), (155, 460376), (217, 328840), (248, 287735), (280, 254851), (310, 230188), (434, 164420), (620, 115094), (868, 82210), (1085, 65768), (1240, 57547), (1736, 41105), (2170, 32884), (4340, 16442), (8221, 8680)]