222208840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1999}}^1$

素因数の和:2414

約数の個数: 64

約数和(自身を含む): 573120000

約数和(自身を除く): 350911160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 397, 794, 1588, 1985, 1999, 2779, 3176, 3970, 3998, 5558, 7940, 7996, 9995, 11116, 13895, 13993, 15880, 15992, 19990, 22232, 27790, 27986, 39980, 55580, 55972, 69965, 79960, 111160, 111944, 139930, 279860, 559720, 793603, 1587206, 3174412, 3968015, 5555221, 6348824, 7936030, 11110442, 15872060, 22220884, 27776105, 31744120, 44441768, 55552210, 111104420, 222208840]

約数ペア:

[(1, 222208840), (2, 111104420), (4, 55552210), (5, 44441768), (7, 31744120), (8, 27776105), (10, 22220884), (14, 15872060), (20, 11110442), (28, 7936030), (35, 6348824), (40, 5555221), (56, 3968015), (70, 3174412), (140, 1587206), (280, 793603), (397, 559720), (794, 279860), (1588, 139930), (1985, 111944), (1999, 111160), (2779, 79960), (3176, 69965), (3970, 55972), (3998, 55580), (5558, 39980), (7940, 27986), (7996, 27790), (9995, 22232), (11116, 19990), (13895, 15992), (13993, 15880)]