20121455102

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:690

約数の個数: 128

約数和(自身を含む): 39217913856

約数和(自身を除く): 19096458754

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 47, 94, 119, 161, 197, 238, 322, 329, 391, 394, 397, 658, 782, 794, 799, 1081, 1379, 1598, 2162, 2737, 2758, 2779, 3349, 4531, 5474, 5558, 5593, 6698, 6749, 7567, 9062, 9131, 9259, 11186, 13498, 15134, 18262, 18377, 18518, 18659, 23443, 31717, 36754, 37318, 46886, 47243, 63434, 63917, 64813, 77027, 78209, 94486, 127834, 128639, 129626, 130613, 154054, 155227, 156418, 157403, 212957, 257278, 261226, 310454, 314806, 317203, 425914, 429157, 539189, 547463, 634406, 858314, 1078378, 1086589, 1094926, 1101821, 1329553, 1490699, 1798807, 2173178, 2203642, 2220421, 2659106, 2981398, 3004099, 3597614, 3620269, 3675823, 4440842, 6008198, 7240538, 7295669, 7351646, 9306871, 12591649, 14591338, 18613742, 25183298, 25341883, 25730761, 30579719, 50683766, 51069683, 51461522, 61159438, 62488991, 84543929, 102139366, 124977982, 169087858, 214058033, 428116066, 437422937, 591807503, 874845874, 1183615006, 1437246793, 2874493586, 10060727551, 20121455102]

約数ペア:

[(1, 20121455102), (2, 10060727551), (7, 2874493586), (14, 1437246793), (17, 1183615006), (23, 874845874), (34, 591807503), (46, 437422937), (47, 428116066), (94, 214058033), (119, 169087858), (161, 124977982), (197, 102139366), (238, 84543929), (322, 62488991), (329, 61159438), (391, 51461522), (394, 51069683), (397, 50683766), (658, 30579719), (782, 25730761), (794, 25341883), (799, 25183298), (1081, 18613742), (1379, 14591338), (1598, 12591649), (2162, 9306871), (2737, 7351646), (2758, 7295669), (2779, 7240538), (3349, 6008198), (4531, 4440842), (5474, 3675823), (5558, 3620269), (5593, 3597614), (6698, 3004099), (6749, 2981398), (7567, 2659106), (9062, 2220421), (9131, 2203642), (9259, 2173178), (11186, 1798807), (13498, 1490699), (15134, 1329553), (18262, 1101821), (18377, 1094926), (18518, 1086589), (18659, 1078378), (23443, 858314), (31717, 634406), (36754, 547463), (37318, 539189), (46886, 429157), (47243, 425914), (63434, 317203), (63917, 314806), (64813, 310454), (77027, 261226), (78209, 257278), (94486, 212957), (127834, 157403), (128639, 156418), (129626, 155227), (130613, 154054)]