81468556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 163882656

約数和(自身を除く): 82414100

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 157, 221, 314, 442, 587, 628, 884, 1174, 2041, 2348, 2669, 4082, 5338, 7631, 8164, 9979, 10676, 15262, 19958, 30524, 34697, 39916, 69394, 92159, 129727, 138788, 184318, 259454, 368636, 518908, 1198067, 1566703, 2396134, 3133406, 4792268, 6266812, 20367139, 40734278, 81468556]

約数ペア:

[(1, 81468556), (2, 40734278), (4, 20367139), (13, 6266812), (17, 4792268), (26, 3133406), (34, 2396134), (52, 1566703), (68, 1198067), (157, 518908), (221, 368636), (314, 259454), (442, 184318), (587, 138788), (628, 129727), (884, 92159), (1174, 69394), (2041, 39916), (2348, 34697), (2669, 30524), (4082, 19958), (5338, 15262), (7631, 10676), (8164, 9979)]