20739528068

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{661}}^1$

素因数の和:1045

約数の個数: 96

約数和(自身を含む): 43073511936

約数和(自身を除く): 22333983868

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 151, 164, 181, 287, 302, 362, 574, 604, 661, 724, 1057, 1148, 1267, 1322, 2114, 2534, 2644, 4228, 4627, 5068, 6191, 7421, 9254, 12382, 14842, 18508, 24764, 27101, 27331, 29684, 43337, 51947, 54202, 54662, 86674, 99811, 103894, 108404, 109324, 119641, 173348, 189707, 191317, 199622, 207788, 239282, 379414, 382634, 399244, 478564, 698677, 758828, 765268, 837487, 1120571, 1397354, 1674974, 2241142, 2794708, 3349948, 4092251, 4482284, 4905281, 7843997, 8184502, 9810562, 15687994, 16369004, 18065791, 19621124, 28645757, 31375988, 34336967, 36131582, 57291514, 68673934, 72263164, 114583028, 126460537, 137347868, 252921074, 505842148, 740697431, 1481394862, 2962789724, 5184882017, 10369764034, 20739528068]

約数ペア:

[(1, 20739528068), (2, 10369764034), (4, 5184882017), (7, 2962789724), (14, 1481394862), (28, 740697431), (41, 505842148), (82, 252921074), (151, 137347868), (164, 126460537), (181, 114583028), (287, 72263164), (302, 68673934), (362, 57291514), (574, 36131582), (604, 34336967), (661, 31375988), (724, 28645757), (1057, 19621124), (1148, 18065791), (1267, 16369004), (1322, 15687994), (2114, 9810562), (2534, 8184502), (2644, 7843997), (4228, 4905281), (4627, 4482284), (5068, 4092251), (6191, 3349948), (7421, 2794708), (9254, 2241142), (12382, 1674974), (14842, 1397354), (18508, 1120571), (24764, 837487), (27101, 765268), (27331, 758828), (29684, 698677), (43337, 478564), (51947, 399244), (54202, 382634), (54662, 379414), (86674, 239282), (99811, 207788), (103894, 199622), (108404, 191317), (109324, 189707), (119641, 173348)]