81404704

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{991}}^1$

素因数の和:1169

約数の個数: 48

約数和(自身を含む): 170989056

約数和(自身を除く): 89584352

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 151, 272, 302, 544, 604, 991, 1208, 1982, 2416, 2567, 3964, 4832, 5134, 7928, 10268, 15856, 16847, 20536, 31712, 33694, 41072, 67388, 82144, 134776, 149641, 269552, 299282, 539104, 598564, 1197128, 2394256, 2543897, 4788512, 5087794, 10175588, 20351176, 40702352, 81404704]

約数ペア:

[(1, 81404704), (2, 40702352), (4, 20351176), (8, 10175588), (16, 5087794), (17, 4788512), (32, 2543897), (34, 2394256), (68, 1197128), (136, 598564), (151, 539104), (272, 299282), (302, 269552), (544, 149641), (604, 134776), (991, 82144), (1208, 67388), (1982, 41072), (2416, 33694), (2567, 31712), (3964, 20536), (4832, 16847), (5134, 15856), (7928, 10268)]