20683390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 28958594

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 49, 65, 70, 85, 91, 98, 119, 130, 170, 182, 191, 221, 238, 245, 382, 442, 455, 490, 595, 637, 833, 910, 955, 1105, 1190, 1274, 1337, 1547, 1666, 1910, 2210, 2483, 2674, 3094, 3185, 3247, 4165, 4966, 6370, 6494, 6685, 7735, 8330, 9359, 10829, 12415, 13370, 15470, 16235, 17381, 18718, 21658, 22729, 24830, 32470, 34762, 42211, 45458, 46795, 54145, 84422, 86905, 93590, 108290, 113645, 121667, 159103, 173810, 211055, 227290, 243334, 295477, 318206, 422110, 590954, 608335, 795515, 1216670, 1477385, 1591030, 2068339, 2954770, 4136678, 10341695, 20683390]

約数ペア:

[(1, 20683390), (2, 10341695), (5, 4136678), (7, 2954770), (10, 2068339), (13, 1591030), (14, 1477385), (17, 1216670), (26, 795515), (34, 608335), (35, 590954), (49, 422110), (65, 318206), (70, 295477), (85, 243334), (91, 227290), (98, 211055), (119, 173810), (130, 159103), (170, 121667), (182, 113645), (191, 108290), (221, 93590), (238, 86905), (245, 84422), (382, 54145), (442, 46795), (455, 45458), (490, 42211), (595, 34762), (637, 32470), (833, 24830), (910, 22729), (955, 21658), (1105, 18718), (1190, 17381), (1274, 16235), (1337, 15470), (1547, 13370), (1666, 12415), (1910, 10829), (2210, 9359), (2483, 8330), (2674, 7735), (3094, 6685), (3185, 6494), (3247, 6370), (4165, 4966)]