127295920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51329}}^1$

素因数の和:51373

約数の個数: 40

約数和(自身を含む): 305516160

約数和(自身を除く): 178220240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 51329, 102658, 205316, 256645, 410632, 513290, 821264, 1026580, 1591199, 2053160, 3182398, 4106320, 6364796, 7955995, 12729592, 15911990, 25459184, 31823980, 63647960, 127295920]

約数ペア:

[(1, 127295920), (2, 63647960), (4, 31823980), (5, 25459184), (8, 15911990), (10, 12729592), (16, 7955995), (20, 6364796), (31, 4106320), (40, 3182398), (62, 2053160), (80, 1591199), (124, 1026580), (155, 821264), (248, 513290), (310, 410632), (496, 256645), (620, 205316), (1240, 102658), (2480, 51329)]