1990305216004

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{903677}}^1$

素因数の和:904373

約数の個数: 72

約数和(自身を含む): 4296522592152

約数和(自身を除く): 2306217376148

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 661, 833, 1322, 1666, 2644, 3332, 4627, 9254, 11237, 18508, 22474, 32389, 44948, 64778, 78659, 129556, 157318, 314636, 550613, 903677, 1101226, 1807354, 2202452, 3614708, 6325739, 12651478, 15362509, 25302956, 30725018, 44280173, 61450036, 88560346, 107537563, 177120692, 215075126, 430150252, 597330497, 752762941, 1194660994, 1505525882, 2389321988, 3011051764, 4181313479, 8362626958, 10154618449, 16725253916, 20309236898, 29269194353, 40618473796, 58538388706, 71082329143, 117076777412, 142164658286, 284329316572, 497576304001, 995152608002, 1990305216004]

約数ペア:

[(1, 1990305216004), (2, 995152608002), (4, 497576304001), (7, 284329316572), (14, 142164658286), (17, 117076777412), (28, 71082329143), (34, 58538388706), (49, 40618473796), (68, 29269194353), (98, 20309236898), (119, 16725253916), (196, 10154618449), (238, 8362626958), (476, 4181313479), (661, 3011051764), (833, 2389321988), (1322, 1505525882), (1666, 1194660994), (2644, 752762941), (3332, 597330497), (4627, 430150252), (9254, 215075126), (11237, 177120692), (18508, 107537563), (22474, 88560346), (32389, 61450036), (44948, 44280173), (64778, 30725018), (78659, 25302956), (129556, 15362509), (157318, 12651478), (314636, 6325739), (550613, 3614708), (903677, 2202452), (1101226, 1807354)]