20898980820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1\times {\mathrm{1579}}^1$

素因数の和:1779

約数の個数: 216

約数和(自身を含む): 66788685600

約数和(自身を除く): 45889704780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 139, 180, 207, 230, 276, 278, 345, 414, 417, 460, 529, 556, 690, 695, 828, 834, 1035, 1058, 1251, 1380, 1390, 1579, 1587, 1668, 2070, 2085, 2116, 2502, 2645, 2780, 3158, 3174, 3197, 4140, 4170, 4737, 4761, 5004, 5290, 6255, 6316, 6348, 6394, 7895, 7935, 8340, 9474, 9522, 9591, 10580, 12510, 12788, 14211, 15790, 15870, 15985, 18948, 19044, 19182, 23685, 23805, 25020, 28422, 28773, 31580, 31740, 31970, 36317, 38364, 47370, 47610, 47955, 56844, 57546, 63940, 71055, 72634, 73531, 94740, 95220, 95910, 108951, 115092, 142110, 143865, 145268, 147062, 181585, 191820, 217902, 219481, 220593, 284220, 287730, 294124, 326853, 363170, 367655, 435804, 438962, 441186, 544755, 575460, 653706, 658443, 661779, 726340, 735310, 835291, 877924, 882372, 1089510, 1097405, 1102965, 1307412, 1316886, 1323558, 1470620, 1634265, 1670582, 1975329, 2179020, 2194810, 2205930, 2505873, 2633772, 2647116, 3268530, 3292215, 3308895, 3341164, 3950658, 4176455, 4389620, 4411860, 5011746, 5048063, 6537060, 6584430, 6617790, 7517619, 7901316, 8352910, 9876645, 10023492, 10096126, 12529365, 13168860, 13235580, 15035238, 15144189, 16705820, 19753290, 20192252, 25058730, 25240315, 30070476, 30288378, 37588095, 39506580, 45432567, 50117460, 50480630, 60576756, 75176190, 75720945, 90865134, 100961260, 116105449, 150352380, 151441890, 181730268, 227162835, 232210898, 302883780, 348316347, 454325670, 464421796, 580527245, 696632694, 908651340, 1044949041, 1161054490, 1393265388, 1741581735, 2089898082, 2322108980, 3483163470, 4179796164, 5224745205, 6966326940, 10449490410, 20898980820]

約数ペア:

[(1, 20898980820), (2, 10449490410), (3, 6966326940), (4, 5224745205), (5, 4179796164), (6, 3483163470), (9, 2322108980), (10, 2089898082), (12, 1741581735), (15, 1393265388), (18, 1161054490), (20, 1044949041), (23, 908651340), (30, 696632694), (36, 580527245), (45, 464421796), (46, 454325670), (60, 348316347), (69, 302883780), (90, 232210898), (92, 227162835), (115, 181730268), (138, 151441890), (139, 150352380), (180, 116105449), (207, 100961260), (230, 90865134), (276, 75720945), (278, 75176190), (345, 60576756), (414, 50480630), (417, 50117460), (460, 45432567), (529, 39506580), (556, 37588095), (690, 30288378), (695, 30070476), (828, 25240315), (834, 25058730), (1035, 20192252), (1058, 19753290), (1251, 16705820), (1380, 15144189), (1390, 15035238), (1579, 13235580), (1587, 13168860), (1668, 12529365), (2070, 10096126), (2085, 10023492), (2116, 9876645), (2502, 8352910), (2645, 7901316), (2780, 7517619), (3158, 6617790), (3174, 6584430), (3197, 6537060), (4140, 5048063), (4170, 5011746), (4737, 4411860), (4761, 4389620), (5004, 4176455), (5290, 3950658), (6255, 3341164), (6316, 3308895), (6348, 3292215), (6394, 3268530), (7895, 2647116), (7935, 2633772), (8340, 2505873), (9474, 2205930), (9522, 2194810), (9591, 2179020), (10580, 1975329), (12510, 1670582), (12788, 1634265), (14211, 1470620), (15790, 1323558), (15870, 1316886), (15985, 1307412), (18948, 1102965), (19044, 1097405), (19182, 1089510), (23685, 882372), (23805, 877924), (25020, 835291), (28422, 735310), (28773, 726340), (31580, 661779), (31740, 658443), (31970, 653706), (36317, 575460), (38364, 544755), (47370, 441186), (47610, 438962), (47955, 435804), (56844, 367655), (57546, 363170), (63940, 326853), (71055, 294124), (72634, 287730), (73531, 284220), (94740, 220593), (95220, 219481), (95910, 217902), (108951, 191820), (115092, 181585), (142110, 147062), (143865, 145268)]