81897088

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:202

約数の個数: 128

約数和(自身を含む): 205632000

約数和(自身を除く): 123734912

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 79, 89, 91, 104, 112, 128, 158, 178, 182, 208, 224, 316, 356, 364, 416, 448, 553, 623, 632, 712, 728, 832, 896, 1027, 1106, 1157, 1246, 1264, 1424, 1456, 1664, 2054, 2212, 2314, 2492, 2528, 2848, 2912, 4108, 4424, 4628, 4984, 5056, 5696, 5824, 7031, 7189, 8099, 8216, 8848, 9256, 9968, 10112, 11392, 11648, 14062, 14378, 16198, 16432, 17696, 18512, 19936, 28124, 28756, 32396, 32864, 35392, 37024, 39872, 49217, 56248, 57512, 64792, 65728, 70784, 74048, 79744, 91403, 98434, 112496, 115024, 129584, 131456, 148096, 182806, 196868, 224992, 230048, 259168, 365612, 393736, 449984, 460096, 518336, 639821, 731224, 787472, 899968, 920192, 1036672, 1279642, 1462448, 1574944, 2559284, 2924896, 3149888, 5118568, 5849792, 6299776, 10237136, 11699584, 20474272, 40948544, 81897088]

約数ペア:

[(1, 81897088), (2, 40948544), (4, 20474272), (7, 11699584), (8, 10237136), (13, 6299776), (14, 5849792), (16, 5118568), (26, 3149888), (28, 2924896), (32, 2559284), (52, 1574944), (56, 1462448), (64, 1279642), (79, 1036672), (89, 920192), (91, 899968), (104, 787472), (112, 731224), (128, 639821), (158, 518336), (178, 460096), (182, 449984), (208, 393736), (224, 365612), (316, 259168), (356, 230048), (364, 224992), (416, 196868), (448, 182806), (553, 148096), (623, 131456), (632, 129584), (712, 115024), (728, 112496), (832, 98434), (896, 91403), (1027, 79744), (1106, 74048), (1157, 70784), (1246, 65728), (1264, 64792), (1424, 57512), (1456, 56248), (1664, 49217), (2054, 39872), (2212, 37024), (2314, 35392), (2492, 32864), (2528, 32396), (2848, 28756), (2912, 28124), (4108, 19936), (4424, 18512), (4628, 17696), (4984, 16432), (5056, 16198), (5696, 14378), (5824, 14062), (7031, 11648), (7189, 11392), (8099, 10112), (8216, 9968), (8848, 9256)]