81277456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 178113600

約数和(自身を除く): 96836144

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 59, 74, 104, 118, 148, 179, 208, 236, 296, 358, 472, 481, 592, 716, 767, 944, 962, 1432, 1534, 1924, 2183, 2327, 2864, 3068, 3848, 4366, 4654, 6136, 6623, 7696, 8732, 9308, 10561, 12272, 13246, 17464, 18616, 21122, 26492, 28379, 34928, 37232, 42244, 52984, 56758, 84488, 86099, 105968, 113516, 137293, 168976, 172198, 227032, 274586, 344396, 390757, 454064, 549172, 688792, 781514, 1098344, 1377584, 1563028, 2196688, 3126056, 5079841, 6252112, 10159682, 20319364, 40638728, 81277456]

約数ペア:

[(1, 81277456), (2, 40638728), (4, 20319364), (8, 10159682), (13, 6252112), (16, 5079841), (26, 3126056), (37, 2196688), (52, 1563028), (59, 1377584), (74, 1098344), (104, 781514), (118, 688792), (148, 549172), (179, 454064), (208, 390757), (236, 344396), (296, 274586), (358, 227032), (472, 172198), (481, 168976), (592, 137293), (716, 113516), (767, 105968), (944, 86099), (962, 84488), (1432, 56758), (1534, 52984), (1924, 42244), (2183, 37232), (2327, 34928), (2864, 28379), (3068, 26492), (3848, 21122), (4366, 18616), (4654, 17464), (6136, 13246), (6623, 12272), (7696, 10561), (8732, 9308)]