18992380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 24916100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 659, 1310, 1318, 1441, 2620, 2636, 2882, 3295, 5764, 6590, 7205, 7249, 13180, 14410, 14498, 28820, 28996, 36245, 72490, 86329, 144980, 172658, 345316, 431645, 863290, 949619, 1726580, 1899238, 3798476, 4748095, 9496190, 18992380]

約数ペア:

[(1, 18992380), (2, 9496190), (4, 4748095), (5, 3798476), (10, 1899238), (11, 1726580), (20, 949619), (22, 863290), (44, 431645), (55, 345316), (110, 172658), (131, 144980), (220, 86329), (262, 72490), (524, 36245), (655, 28996), (659, 28820), (1310, 14498), (1318, 14410), (1441, 13180), (2620, 7249), (2636, 7205), (2882, 6590), (3295, 5764)]