20209644

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 65228800

約数和(自身を除く): 45019156

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 31, 36, 39, 42, 52, 62, 63, 78, 84, 91, 93, 117, 124, 126, 156, 182, 186, 199, 217, 234, 252, 273, 279, 364, 372, 398, 403, 434, 468, 546, 558, 597, 651, 796, 806, 819, 868, 1092, 1116, 1194, 1209, 1302, 1393, 1612, 1638, 1791, 1953, 2388, 2418, 2587, 2604, 2786, 2821, 3276, 3582, 3627, 3906, 4179, 4836, 5174, 5572, 5642, 6169, 7164, 7254, 7761, 7812, 8358, 8463, 10348, 11284, 12338, 12537, 14508, 15522, 16716, 16926, 18109, 18507, 23283, 24676, 25074, 25389, 31044, 33852, 36218, 37014, 43183, 46566, 50148, 50778, 54327, 55521, 72436, 74028, 80197, 86366, 93132, 101556, 108654, 111042, 129549, 160394, 162981, 172732, 217308, 222084, 240591, 259098, 320788, 325962, 388647, 481182, 518196, 561379, 651924, 721773, 777294, 962364, 1122758, 1443546, 1554588, 1684137, 2245516, 2887092, 3368274, 5052411, 6736548, 10104822, 20209644]

約数ペア:

[(1, 20209644), (2, 10104822), (3, 6736548), (4, 5052411), (6, 3368274), (7, 2887092), (9, 2245516), (12, 1684137), (13, 1554588), (14, 1443546), (18, 1122758), (21, 962364), (26, 777294), (28, 721773), (31, 651924), (36, 561379), (39, 518196), (42, 481182), (52, 388647), (62, 325962), (63, 320788), (78, 259098), (84, 240591), (91, 222084), (93, 217308), (117, 172732), (124, 162981), (126, 160394), (156, 129549), (182, 111042), (186, 108654), (199, 101556), (217, 93132), (234, 86366), (252, 80197), (273, 74028), (279, 72436), (364, 55521), (372, 54327), (398, 50778), (403, 50148), (434, 46566), (468, 43183), (546, 37014), (558, 36218), (597, 33852), (651, 31044), (796, 25389), (806, 25074), (819, 24676), (868, 23283), (1092, 18507), (1116, 18109), (1194, 16926), (1209, 16716), (1302, 15522), (1393, 14508), (1612, 12537), (1638, 12338), (1791, 11284), (1953, 10348), (2388, 8463), (2418, 8358), (2587, 7812), (2604, 7761), (2786, 7254), (2821, 7164), (3276, 6169), (3582, 5642), (3627, 5572), (3906, 5174), (4179, 4836)]