81011340

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 259284480

約数和(自身を除く): 178273140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 81, 90, 108, 135, 158, 162, 180, 211, 237, 243, 270, 316, 324, 395, 405, 422, 474, 486, 540, 633, 711, 790, 810, 844, 948, 972, 1055, 1185, 1215, 1266, 1422, 1580, 1620, 1899, 2110, 2133, 2370, 2430, 2532, 2844, 3165, 3555, 3798, 4220, 4266, 4740, 4860, 5697, 6330, 6399, 7110, 7596, 8532, 9495, 10665, 11394, 12660, 12798, 14220, 16669, 17091, 18990, 19197, 21330, 22788, 25596, 28485, 31995, 33338, 34182, 37980, 38394, 42660, 50007, 51273, 56970, 63990, 66676, 68364, 76788, 83345, 85455, 95985, 100014, 102546, 113940, 127980, 150021, 166690, 170910, 191970, 200028, 205092, 250035, 256365, 300042, 333380, 341820, 383940, 450063, 500070, 512730, 600084, 750105, 900126, 1000140, 1025460, 1350189, 1500210, 1800252, 2250315, 2700378, 3000420, 4050567, 4500630, 5400756, 6750945, 8101134, 9001260, 13501890, 16202268, 20252835, 27003780, 40505670, 81011340]

約数ペア:

[(1, 81011340), (2, 40505670), (3, 27003780), (4, 20252835), (5, 16202268), (6, 13501890), (9, 9001260), (10, 8101134), (12, 6750945), (15, 5400756), (18, 4500630), (20, 4050567), (27, 3000420), (30, 2700378), (36, 2250315), (45, 1800252), (54, 1500210), (60, 1350189), (79, 1025460), (81, 1000140), (90, 900126), (108, 750105), (135, 600084), (158, 512730), (162, 500070), (180, 450063), (211, 383940), (237, 341820), (243, 333380), (270, 300042), (316, 256365), (324, 250035), (395, 205092), (405, 200028), (422, 191970), (474, 170910), (486, 166690), (540, 150021), (633, 127980), (711, 113940), (790, 102546), (810, 100014), (844, 95985), (948, 85455), (972, 83345), (1055, 76788), (1185, 68364), (1215, 66676), (1266, 63990), (1422, 56970), (1580, 51273), (1620, 50007), (1899, 42660), (2110, 38394), (2133, 37980), (2370, 34182), (2430, 33338), (2532, 31995), (2844, 28485), (3165, 25596), (3555, 22788), (3798, 21330), (4220, 19197), (4266, 18990), (4740, 17091), (4860, 16669), (5697, 14220), (6330, 12798), (6399, 12660), (7110, 11394), (7596, 10665), (8532, 9495)]