27720420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5077}}^1$

素因数の和:5109

約数の個数: 96

約数和(自身を含む): 95547648

約数和(自身を除く): 67827228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5077, 5460, 10154, 15231, 20308, 25385, 30462, 35539, 50770, 60924, 66001, 71078, 76155, 101540, 106617, 132002, 142156, 152310, 177695, 198003, 213234, 264004, 304620, 330005, 355390, 396006, 426468, 462007, 533085, 660010, 710780, 792012, 924014, 990015, 1066170, 1320020, 1386021, 1848028, 1980030, 2132340, 2310035, 2772042, 3960060, 4620070, 5544084, 6930105, 9240140, 13860210, 27720420]

約数ペア:

[(1, 27720420), (2, 13860210), (3, 9240140), (4, 6930105), (5, 5544084), (6, 4620070), (7, 3960060), (10, 2772042), (12, 2310035), (13, 2132340), (14, 1980030), (15, 1848028), (20, 1386021), (21, 1320020), (26, 1066170), (28, 990015), (30, 924014), (35, 792012), (39, 710780), (42, 660010), (52, 533085), (60, 462007), (65, 426468), (70, 396006), (78, 355390), (84, 330005), (91, 304620), (105, 264004), (130, 213234), (140, 198003), (156, 177695), (182, 152310), (195, 142156), (210, 132002), (260, 106617), (273, 101540), (364, 76155), (390, 71078), (420, 66001), (455, 60924), (546, 50770), (780, 35539), (910, 30462), (1092, 25385), (1365, 20308), (1820, 15231), (2730, 10154), (5077, 5460)]