20171216890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{1669}}^1$

素因数の和:2008

約数の個数: 128

約数和(自身を含む): 43944353280

約数和(自身を除く): 23773136390

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 34, 46, 55, 85, 110, 115, 170, 187, 230, 253, 281, 374, 391, 506, 562, 782, 935, 1265, 1405, 1669, 1870, 1955, 2530, 2810, 3091, 3338, 3910, 4301, 4777, 6182, 6463, 8345, 8602, 9554, 12926, 15455, 16690, 18359, 21505, 23885, 28373, 30910, 32315, 36718, 38387, 43010, 47770, 52547, 56746, 64630, 71093, 76774, 91795, 105094, 109871, 141865, 142186, 183590, 191935, 219742, 262735, 283730, 312103, 355465, 383870, 422257, 468989, 525470, 549355, 624206, 652579, 710930, 844514, 937978, 1098710, 1208581, 1305158, 1560515, 2111285, 2344945, 2417162, 3121030, 3262895, 4222570, 4689890, 5158879, 6042905, 6525790, 7178369, 7972813, 10317758, 10786747, 12085810, 14356738, 15945626, 21573494, 25794395, 35891845, 39864065, 51588790, 53933735, 71783690, 79728130, 87700943, 107867470, 118654217, 175401886, 183374699, 237308434, 366749398, 438504715, 593271085, 877009430, 916873495, 1186542170, 1833746990, 2017121689, 4034243378, 10085608445, 20171216890]

約数ペア:

[(1, 20171216890), (2, 10085608445), (5, 4034243378), (10, 2017121689), (11, 1833746990), (17, 1186542170), (22, 916873495), (23, 877009430), (34, 593271085), (46, 438504715), (55, 366749398), (85, 237308434), (110, 183374699), (115, 175401886), (170, 118654217), (187, 107867470), (230, 87700943), (253, 79728130), (281, 71783690), (374, 53933735), (391, 51588790), (506, 39864065), (562, 35891845), (782, 25794395), (935, 21573494), (1265, 15945626), (1405, 14356738), (1669, 12085810), (1870, 10786747), (1955, 10317758), (2530, 7972813), (2810, 7178369), (3091, 6525790), (3338, 6042905), (3910, 5158879), (4301, 4689890), (4777, 4222570), (6182, 3262895), (6463, 3121030), (8345, 2417162), (8602, 2344945), (9554, 2111285), (12926, 1560515), (15455, 1305158), (16690, 1208581), (18359, 1098710), (21505, 937978), (23885, 844514), (28373, 710930), (30910, 652579), (32315, 624206), (36718, 549355), (38387, 525470), (43010, 468989), (47770, 422257), (52547, 383870), (56746, 355465), (64630, 312103), (71093, 283730), (76774, 262735), (91795, 219742), (105094, 191935), (109871, 183590), (141865, 142186)]