20120457868

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1511}}^1$

素因数の和:1628

約数の個数: 144

約数和(自身を含む): 44950671360

約数和(自身を除く): 24830213492

約数列:

[1, 2, 4, 7, 14, 23, 28, 29, 31, 46, 58, 62, 92, 116, 124, 161, 203, 217, 322, 406, 434, 529, 644, 667, 713, 812, 868, 899, 1058, 1334, 1426, 1511, 1798, 2116, 2668, 2852, 3022, 3596, 3703, 4669, 4991, 6044, 6293, 7406, 9338, 9982, 10577, 12586, 14812, 15341, 16399, 18676, 19964, 20677, 21154, 25172, 30682, 32798, 34753, 41354, 42308, 43819, 46841, 61364, 65596, 69506, 82708, 87638, 93682, 107387, 114793, 139012, 144739, 175276, 187364, 214774, 229586, 243271, 289478, 306733, 327887, 429548, 459172, 475571, 486542, 578956, 613466, 655774, 799319, 951142, 973084, 1007837, 1077343, 1226932, 1311548, 1358389, 1598638, 1902284, 2015674, 2154686, 2716778, 3197276, 3328997, 4031348, 4309372, 5433556, 5595233, 6657994, 7054859, 7541401, 9508723, 11190466, 13315988, 14109718, 15082802, 19017446, 22380932, 23180251, 24778889, 28219436, 30165604, 31242947, 38034892, 46360502, 49557778, 62485894, 92721004, 99115556, 124971788, 162261757, 173452223, 218700629, 324523514, 346904446, 437401258, 649047028, 693808892, 718587781, 874802516, 1437175562, 2874351124, 5030114467, 10060228934, 20120457868]

約数ペア:

[(1, 20120457868), (2, 10060228934), (4, 5030114467), (7, 2874351124), (14, 1437175562), (23, 874802516), (28, 718587781), (29, 693808892), (31, 649047028), (46, 437401258), (58, 346904446), (62, 324523514), (92, 218700629), (116, 173452223), (124, 162261757), (161, 124971788), (203, 99115556), (217, 92721004), (322, 62485894), (406, 49557778), (434, 46360502), (529, 38034892), (644, 31242947), (667, 30165604), (713, 28219436), (812, 24778889), (868, 23180251), (899, 22380932), (1058, 19017446), (1334, 15082802), (1426, 14109718), (1511, 13315988), (1798, 11190466), (2116, 9508723), (2668, 7541401), (2852, 7054859), (3022, 6657994), (3596, 5595233), (3703, 5433556), (4669, 4309372), (4991, 4031348), (6044, 3328997), (6293, 3197276), (7406, 2716778), (9338, 2154686), (9982, 2015674), (10577, 1902284), (12586, 1598638), (14812, 1358389), (15341, 1311548), (16399, 1226932), (18676, 1077343), (19964, 1007837), (20677, 973084), (21154, 951142), (25172, 799319), (30682, 655774), (32798, 613466), (34753, 578956), (41354, 486542), (42308, 475571), (43819, 459172), (46841, 429548), (61364, 327887), (65596, 306733), (69506, 289478), (82708, 243271), (87638, 229586), (93682, 214774), (107387, 187364), (114793, 175276), (139012, 144739)]