20542770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 96

約数和(自身を含む): 56908800

約数和(自身を除く): 36366030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 37, 45, 62, 74, 90, 93, 111, 155, 185, 186, 199, 222, 279, 310, 333, 370, 398, 465, 555, 558, 597, 666, 930, 995, 1110, 1147, 1194, 1395, 1665, 1791, 1990, 2294, 2790, 2985, 3330, 3441, 3582, 5735, 5970, 6169, 6882, 7363, 8955, 10323, 11470, 12338, 14726, 17205, 17910, 18507, 20646, 22089, 30845, 34410, 36815, 37014, 44178, 51615, 55521, 61690, 66267, 73630, 92535, 103230, 110445, 111042, 132534, 185070, 220890, 228253, 277605, 331335, 456506, 555210, 662670, 684759, 1141265, 1369518, 2054277, 2282530, 3423795, 4108554, 6847590, 10271385, 20542770]

約数ペア:

[(1, 20542770), (2, 10271385), (3, 6847590), (5, 4108554), (6, 3423795), (9, 2282530), (10, 2054277), (15, 1369518), (18, 1141265), (30, 684759), (31, 662670), (37, 555210), (45, 456506), (62, 331335), (74, 277605), (90, 228253), (93, 220890), (111, 185070), (155, 132534), (185, 111042), (186, 110445), (199, 103230), (222, 92535), (279, 73630), (310, 66267), (333, 61690), (370, 55521), (398, 51615), (465, 44178), (555, 37014), (558, 36815), (597, 34410), (666, 30845), (930, 22089), (995, 20646), (1110, 18507), (1147, 17910), (1194, 17205), (1395, 14726), (1665, 12338), (1791, 11470), (1990, 10323), (2294, 8955), (2790, 7363), (2985, 6882), (3330, 6169), (3441, 5970), (3582, 5735)]