208980888920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1297}}^1\times {\mathrm{76003}}^1$

素因数の和:77364

約数の個数: 64

約数和(自身を含む): 479454513120

約数和(自身を除く): 270473624200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 1297, 2120, 2594, 5188, 6485, 10376, 12970, 25940, 51880, 68741, 76003, 137482, 152006, 274964, 304012, 343705, 380015, 549928, 608024, 687410, 760030, 1374820, 1520060, 2749640, 3040120, 4028159, 8056318, 16112636, 20140795, 32225272, 40281590, 80563180, 98575891, 161126360, 197151782, 394303564, 492879455, 788607128, 985758910, 1971517820, 3943035640, 5224522223, 10449044446, 20898088892, 26122611115, 41796177784, 52245222230, 104490444460, 208980888920]

約数ペア:

[(1, 208980888920), (2, 104490444460), (4, 52245222230), (5, 41796177784), (8, 26122611115), (10, 20898088892), (20, 10449044446), (40, 5224522223), (53, 3943035640), (106, 1971517820), (212, 985758910), (265, 788607128), (424, 492879455), (530, 394303564), (1060, 197151782), (1297, 161126360), (2120, 98575891), (2594, 80563180), (5188, 40281590), (6485, 32225272), (10376, 20140795), (12970, 16112636), (25940, 8056318), (51880, 4028159), (68741, 3040120), (76003, 2749640), (137482, 1520060), (152006, 1374820), (274964, 760030), (304012, 687410), (343705, 608024), (380015, 549928)]