211734080

素因数分解:

$2^6\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1999}}^1$

素因数の和:2347

約数の個数: 56

約数和(自身を含む): 505968000

約数和(自身を除く): 294233920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 331, 662, 1324, 1655, 1999, 2648, 3310, 3998, 5296, 6620, 7996, 9995, 10592, 13240, 15992, 19990, 21184, 26480, 31984, 39980, 52960, 63968, 79960, 105920, 127936, 159920, 319840, 639680, 661669, 1323338, 2646676, 3308345, 5293352, 6616690, 10586704, 13233380, 21173408, 26466760, 42346816, 52933520, 105867040, 211734080]

約数ペア:

[(1, 211734080), (2, 105867040), (4, 52933520), (5, 42346816), (8, 26466760), (10, 21173408), (16, 13233380), (20, 10586704), (32, 6616690), (40, 5293352), (64, 3308345), (80, 2646676), (160, 1323338), (320, 661669), (331, 639680), (662, 319840), (1324, 159920), (1655, 127936), (1999, 105920), (2648, 79960), (3310, 63968), (3998, 52960), (5296, 39980), (6620, 31984), (7996, 26480), (9995, 21184), (10592, 19990), (13240, 15992)]