639723882

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{5309}}^1$

素因数の和:5491

約数の個数: 64

約数和(自身を含む): 1549670400

約数和(自身を除く): 909946518

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 151, 266, 302, 399, 453, 798, 906, 1057, 2114, 2869, 3171, 5309, 5738, 6342, 8607, 10618, 15927, 17214, 20083, 31854, 37163, 40166, 60249, 74326, 100871, 111489, 120498, 201742, 222978, 302613, 605226, 706097, 801659, 1412194, 1603318, 2118291, 2404977, 4236582, 4809954, 5611613, 11223226, 15231521, 16834839, 30463042, 33669678, 45694563, 91389126, 106620647, 213241294, 319861941, 639723882]

約数ペア:

[(1, 639723882), (2, 319861941), (3, 213241294), (6, 106620647), (7, 91389126), (14, 45694563), (19, 33669678), (21, 30463042), (38, 16834839), (42, 15231521), (57, 11223226), (114, 5611613), (133, 4809954), (151, 4236582), (266, 2404977), (302, 2118291), (399, 1603318), (453, 1412194), (798, 801659), (906, 706097), (1057, 605226), (2114, 302613), (2869, 222978), (3171, 201742), (5309, 120498), (5738, 111489), (6342, 100871), (8607, 74326), (10618, 60249), (15927, 40166), (17214, 37163), (20083, 31854)]