20197866668

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2309}}^1$

素因数の和:2424

約数の個数: 144

約数和(自身を含む): 45749975040

約数和(自身を除く): 25552108372

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 47, 68, 92, 94, 119, 161, 188, 238, 289, 322, 329, 391, 476, 578, 644, 658, 782, 799, 1081, 1156, 1316, 1564, 1598, 2023, 2162, 2309, 2737, 3196, 4046, 4324, 4618, 5474, 5593, 6647, 7567, 8092, 9236, 10948, 11186, 13294, 13583, 15134, 16163, 18377, 22372, 26588, 27166, 30268, 32326, 36754, 39253, 46529, 53107, 54332, 64652, 73508, 78506, 93058, 95081, 106214, 108523, 128639, 157012, 186116, 190162, 212428, 217046, 257278, 274771, 312409, 371749, 380324, 434092, 514556, 549542, 624818, 667301, 743498, 759661, 902819, 1099084, 1249636, 1334602, 1486996, 1519322, 1805638, 1844891, 2186863, 2496029, 2669204, 3038644, 3611276, 3689782, 4373726, 4671107, 4992058, 6319733, 7379564, 8747452, 9342214, 9984116, 12639466, 12914237, 15347923, 17472203, 18684428, 25278932, 25828474, 30695846, 31363147, 34944406, 42432493, 51656948, 61391692, 62726294, 69888812, 84864986, 107435461, 125452588, 169729972, 214870922, 219542029, 297027451, 429741844, 439084058, 594054902, 721352381, 878168116, 1188109804, 1442704762, 2885409524, 5049466667, 10098933334, 20197866668]

約数ペア:

[(1, 20197866668), (2, 10098933334), (4, 5049466667), (7, 2885409524), (14, 1442704762), (17, 1188109804), (23, 878168116), (28, 721352381), (34, 594054902), (46, 439084058), (47, 429741844), (68, 297027451), (92, 219542029), (94, 214870922), (119, 169729972), (161, 125452588), (188, 107435461), (238, 84864986), (289, 69888812), (322, 62726294), (329, 61391692), (391, 51656948), (476, 42432493), (578, 34944406), (644, 31363147), (658, 30695846), (782, 25828474), (799, 25278932), (1081, 18684428), (1156, 17472203), (1316, 15347923), (1564, 12914237), (1598, 12639466), (2023, 9984116), (2162, 9342214), (2309, 8747452), (2737, 7379564), (3196, 6319733), (4046, 4992058), (4324, 4671107), (4618, 4373726), (5474, 3689782), (5593, 3611276), (6647, 3038644), (7567, 2669204), (8092, 2496029), (9236, 2186863), (10948, 1844891), (11186, 1805638), (13294, 1519322), (13583, 1486996), (15134, 1334602), (16163, 1249636), (18377, 1099084), (22372, 902819), (26588, 759661), (27166, 743498), (30268, 667301), (32326, 624818), (36754, 549542), (39253, 514556), (46529, 434092), (53107, 380324), (54332, 371749), (64652, 312409), (73508, 274771), (78506, 257278), (93058, 217046), (95081, 212428), (106214, 190162), (108523, 186116), (128639, 157012)]