20002440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:347

約数の個数: 128

約数和(自身を含む): 65433600

約数和(自身を除く): 45431160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 283, 285, 310, 372, 380, 456, 465, 566, 570, 589, 620, 744, 760, 849, 930, 1132, 1140, 1178, 1240, 1415, 1698, 1767, 1860, 2264, 2280, 2356, 2830, 2945, 3396, 3534, 3720, 4245, 4712, 5377, 5660, 5890, 6792, 7068, 8490, 8773, 8835, 10754, 11320, 11780, 14136, 16131, 16980, 17546, 17670, 21508, 23560, 26319, 26885, 32262, 33960, 35092, 35340, 43016, 43865, 52638, 53770, 64524, 70184, 70680, 80655, 87730, 105276, 107540, 129048, 131595, 161310, 166687, 175460, 210552, 215080, 263190, 322620, 333374, 350920, 500061, 526380, 645240, 666748, 833435, 1000122, 1052760, 1333496, 1666870, 2000244, 2500305, 3333740, 4000488, 5000610, 6667480, 10001220, 20002440]

約数ペア:

[(1, 20002440), (2, 10001220), (3, 6667480), (4, 5000610), (5, 4000488), (6, 3333740), (8, 2500305), (10, 2000244), (12, 1666870), (15, 1333496), (19, 1052760), (20, 1000122), (24, 833435), (30, 666748), (31, 645240), (38, 526380), (40, 500061), (57, 350920), (60, 333374), (62, 322620), (76, 263190), (93, 215080), (95, 210552), (114, 175460), (120, 166687), (124, 161310), (152, 131595), (155, 129048), (186, 107540), (190, 105276), (228, 87730), (248, 80655), (283, 70680), (285, 70184), (310, 64524), (372, 53770), (380, 52638), (456, 43865), (465, 43016), (566, 35340), (570, 35092), (589, 33960), (620, 32262), (744, 26885), (760, 26319), (849, 23560), (930, 21508), (1132, 17670), (1140, 17546), (1178, 16980), (1240, 16131), (1415, 14136), (1698, 11780), (1767, 11320), (1860, 10754), (2264, 8835), (2280, 8773), (2356, 8490), (2830, 7068), (2945, 6792), (3396, 5890), (3534, 5660), (3720, 5377), (4245, 4712)]