128417744

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1108

約数の個数: 80

約数和(自身を含む): 309980160

約数和(自身を除く): 181562416

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 89, 91, 104, 112, 178, 182, 208, 356, 364, 623, 712, 728, 991, 1157, 1246, 1424, 1456, 1982, 2314, 2492, 3964, 4628, 4984, 6937, 7928, 8099, 9256, 9968, 12883, 13874, 15856, 16198, 18512, 25766, 27748, 32396, 51532, 55496, 64792, 88199, 90181, 103064, 110992, 129584, 176398, 180362, 206128, 352796, 360724, 617393, 705592, 721448, 1146587, 1234786, 1411184, 1442896, 2293174, 2469572, 4586348, 4939144, 8026109, 9172696, 9878288, 16052218, 18345392, 32104436, 64208872, 128417744]

約数ペア:

[(1, 128417744), (2, 64208872), (4, 32104436), (7, 18345392), (8, 16052218), (13, 9878288), (14, 9172696), (16, 8026109), (26, 4939144), (28, 4586348), (52, 2469572), (56, 2293174), (89, 1442896), (91, 1411184), (104, 1234786), (112, 1146587), (178, 721448), (182, 705592), (208, 617393), (356, 360724), (364, 352796), (623, 206128), (712, 180362), (728, 176398), (991, 129584), (1157, 110992), (1246, 103064), (1424, 90181), (1456, 88199), (1982, 64792), (2314, 55496), (2492, 51532), (3964, 32396), (4628, 27748), (4984, 25766), (6937, 18512), (7928, 16198), (8099, 15856), (9256, 13874), (9968, 12883)]