27930420

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{821}}^1$

素因数の和:852

約数の個数: 144

約数和(自身を含む): 100533888

約数和(自身を除く): 72603468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 567, 630, 756, 810, 821, 945, 972, 1134, 1215, 1260, 1620, 1642, 1701, 1890, 2268, 2430, 2463, 2835, 3284, 3402, 3780, 4105, 4860, 4926, 5670, 5747, 6804, 7389, 8210, 8505, 9852, 11340, 11494, 12315, 14778, 16420, 17010, 17241, 22167, 22988, 24630, 28735, 29556, 34020, 34482, 36945, 44334, 49260, 51723, 57470, 66501, 68964, 73890, 86205, 88668, 103446, 110835, 114940, 133002, 147780, 155169, 172410, 199503, 206892, 221670, 258615, 266004, 310338, 332505, 344820, 399006, 443340, 465507, 517230, 620676, 665010, 775845, 798012, 931014, 997515, 1034460, 1330020, 1396521, 1551690, 1862028, 1995030, 2327535, 2793042, 3103380, 3990060, 4655070, 5586084, 6982605, 9310140, 13965210, 27930420]

約数ペア:

[(1, 27930420), (2, 13965210), (3, 9310140), (4, 6982605), (5, 5586084), (6, 4655070), (7, 3990060), (9, 3103380), (10, 2793042), (12, 2327535), (14, 1995030), (15, 1862028), (18, 1551690), (20, 1396521), (21, 1330020), (27, 1034460), (28, 997515), (30, 931014), (35, 798012), (36, 775845), (42, 665010), (45, 620676), (54, 517230), (60, 465507), (63, 443340), (70, 399006), (81, 344820), (84, 332505), (90, 310338), (105, 266004), (108, 258615), (126, 221670), (135, 206892), (140, 199503), (162, 172410), (180, 155169), (189, 147780), (210, 133002), (243, 114940), (252, 110835), (270, 103446), (315, 88668), (324, 86205), (378, 73890), (405, 68964), (420, 66501), (486, 57470), (540, 51723), (567, 49260), (630, 44334), (756, 36945), (810, 34482), (821, 34020), (945, 29556), (972, 28735), (1134, 24630), (1215, 22988), (1260, 22167), (1620, 17241), (1642, 17010), (1701, 16420), (1890, 14778), (2268, 12315), (2430, 11494), (2463, 11340), (2835, 9852), (3284, 8505), (3402, 8210), (3780, 7389), (4105, 6804), (4860, 5747), (4926, 5670)]