11981790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 32256000

約数和(自身を除く): 20274210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 199, 223, 270, 398, 446, 597, 669, 995, 1115, 1194, 1338, 1791, 1990, 2007, 2230, 2985, 3345, 3582, 4014, 5373, 5970, 6021, 6690, 8955, 10035, 10746, 12042, 17910, 20070, 26865, 30105, 44377, 53730, 60210, 88754, 133131, 221885, 266262, 399393, 443770, 665655, 798786, 1198179, 1331310, 1996965, 2396358, 3993930, 5990895, 11981790]

約数ペア:

[(1, 11981790), (2, 5990895), (3, 3993930), (5, 2396358), (6, 1996965), (9, 1331310), (10, 1198179), (15, 798786), (18, 665655), (27, 443770), (30, 399393), (45, 266262), (54, 221885), (90, 133131), (135, 88754), (199, 60210), (223, 53730), (270, 44377), (398, 30105), (446, 26865), (597, 20070), (669, 17910), (995, 12042), (1115, 10746), (1194, 10035), (1338, 8955), (1791, 6690), (1990, 6021), (2007, 5970), (2230, 5373), (2985, 4014), (3345, 3582)]