20838090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:496

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 44480310

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 21, 26, 30, 34, 35, 39, 42, 51, 65, 70, 78, 85, 91, 102, 105, 119, 130, 170, 182, 195, 210, 221, 238, 255, 273, 357, 390, 442, 449, 455, 510, 546, 595, 663, 714, 898, 910, 1105, 1190, 1326, 1347, 1365, 1547, 1785, 2210, 2245, 2694, 2730, 3094, 3143, 3315, 3570, 4490, 4641, 5837, 6286, 6630, 6735, 7633, 7735, 9282, 9429, 11674, 13470, 15266, 15470, 15715, 17511, 18858, 22899, 23205, 29185, 31430, 35022, 38165, 40859, 45798, 46410, 47145, 53431, 58370, 76330, 81718, 87555, 94290, 99229, 106862, 114495, 122577, 160293, 175110, 198458, 204295, 228990, 245154, 267155, 297687, 320586, 408590, 496145, 534310, 595374, 612885, 694603, 801465, 992290, 1225770, 1389206, 1488435, 1602930, 2083809, 2976870, 3473015, 4167618, 6946030, 10419045, 20838090]

約数ペア:

[(1, 20838090), (2, 10419045), (3, 6946030), (5, 4167618), (6, 3473015), (7, 2976870), (10, 2083809), (13, 1602930), (14, 1488435), (15, 1389206), (17, 1225770), (21, 992290), (26, 801465), (30, 694603), (34, 612885), (35, 595374), (39, 534310), (42, 496145), (51, 408590), (65, 320586), (70, 297687), (78, 267155), (85, 245154), (91, 228990), (102, 204295), (105, 198458), (119, 175110), (130, 160293), (170, 122577), (182, 114495), (195, 106862), (210, 99229), (221, 94290), (238, 87555), (255, 81718), (273, 76330), (357, 58370), (390, 53431), (442, 47145), (449, 46410), (455, 45798), (510, 40859), (546, 38165), (595, 35022), (663, 31430), (714, 29185), (898, 23205), (910, 22899), (1105, 18858), (1190, 17511), (1326, 15715), (1347, 15470), (1365, 15266), (1547, 13470), (1785, 11674), (2210, 9429), (2245, 9282), (2694, 7735), (2730, 7633), (3094, 6735), (3143, 6630), (3315, 6286), (3570, 5837), (4490, 4641)]