20658397788

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{419}}^1\times {\mathrm{21739}}^1$

素因数の和:22181

約数の個数: 120

約数和(自身を含む): 61870300800

約数和(自身を除く): 41211903012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 252, 324, 378, 419, 567, 756, 838, 1134, 1257, 1676, 2268, 2514, 2933, 3771, 5028, 5866, 7542, 8799, 11313, 11732, 15084, 17598, 21739, 22626, 26397, 33939, 35196, 43478, 45252, 52794, 65217, 67878, 79191, 86956, 105588, 130434, 135756, 152173, 158382, 195651, 237573, 260868, 304346, 316764, 391302, 456519, 475146, 586953, 608692, 782604, 913038, 950292, 1173906, 1369557, 1760859, 1826076, 2347812, 2739114, 3521718, 4108671, 5478228, 7043436, 8217342, 9108641, 12326013, 16434684, 18217282, 24652026, 27325923, 36434564, 49304052, 54651846, 63760487, 81977769, 109303692, 127520974, 163955538, 191281461, 245933307, 255041948, 327911076, 382562922, 491866614, 573844383, 737799921, 765125844, 983733228, 1147688766, 1475599842, 1721533149, 2295377532, 2951199684, 3443066298, 5164599447, 6886132596, 10329198894, 20658397788]

約数ペア:

[(1, 20658397788), (2, 10329198894), (3, 6886132596), (4, 5164599447), (6, 3443066298), (7, 2951199684), (9, 2295377532), (12, 1721533149), (14, 1475599842), (18, 1147688766), (21, 983733228), (27, 765125844), (28, 737799921), (36, 573844383), (42, 491866614), (54, 382562922), (63, 327911076), (81, 255041948), (84, 245933307), (108, 191281461), (126, 163955538), (162, 127520974), (189, 109303692), (252, 81977769), (324, 63760487), (378, 54651846), (419, 49304052), (567, 36434564), (756, 27325923), (838, 24652026), (1134, 18217282), (1257, 16434684), (1676, 12326013), (2268, 9108641), (2514, 8217342), (2933, 7043436), (3771, 5478228), (5028, 4108671), (5866, 3521718), (7542, 2739114), (8799, 2347812), (11313, 1826076), (11732, 1760859), (15084, 1369557), (17598, 1173906), (21739, 950292), (22626, 913038), (26397, 782604), (33939, 608692), (35196, 586953), (43478, 475146), (45252, 456519), (52794, 391302), (65217, 316764), (67878, 304346), (79191, 260868), (86956, 237573), (105588, 195651), (130434, 158382), (135756, 152173)]