81068820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10159}}^1$

素因数の和:10197

約数の個数: 96

約数和(自身を含む): 273100800

約数和(自身を除く): 192031980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 10159, 20318, 30477, 40636, 50795, 60954, 71113, 101590, 121908, 142226, 152385, 193021, 203180, 213339, 284452, 304770, 355565, 386042, 426678, 579063, 609540, 711130, 772084, 853356, 965105, 1066695, 1158126, 1351147, 1422260, 1930210, 2133390, 2316252, 2702294, 2895315, 3860420, 4053441, 4266780, 5404588, 5790630, 6755735, 8106882, 11581260, 13511470, 16213764, 20267205, 27022940, 40534410, 81068820]

約数ペア:

[(1, 81068820), (2, 40534410), (3, 27022940), (4, 20267205), (5, 16213764), (6, 13511470), (7, 11581260), (10, 8106882), (12, 6755735), (14, 5790630), (15, 5404588), (19, 4266780), (20, 4053441), (21, 3860420), (28, 2895315), (30, 2702294), (35, 2316252), (38, 2133390), (42, 1930210), (57, 1422260), (60, 1351147), (70, 1158126), (76, 1066695), (84, 965105), (95, 853356), (105, 772084), (114, 711130), (133, 609540), (140, 579063), (190, 426678), (210, 386042), (228, 355565), (266, 304770), (285, 284452), (380, 213339), (399, 203180), (420, 193021), (532, 152385), (570, 142226), (665, 121908), (798, 101590), (1140, 71113), (1330, 60954), (1596, 50795), (1995, 40636), (2660, 30477), (3990, 20318), (7980, 10159)]