261638816

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{653}}^1\times {\mathrm{659}}^1$

素因数の和:1341

約数の個数: 48

約数和(自身を含む): 543866400

約数和(自身を除く): 282227584

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 653, 659, 1306, 1318, 2612, 2636, 5224, 5272, 10448, 10544, 12407, 12521, 20896, 21088, 24814, 25042, 49628, 50084, 99256, 100168, 198512, 200336, 397024, 400672, 430327, 860654, 1721308, 3442616, 6885232, 8176213, 13770464, 16352426, 32704852, 65409704, 130819408, 261638816]

約数ペア:

[(1, 261638816), (2, 130819408), (4, 65409704), (8, 32704852), (16, 16352426), (19, 13770464), (32, 8176213), (38, 6885232), (76, 3442616), (152, 1721308), (304, 860654), (608, 430327), (653, 400672), (659, 397024), (1306, 200336), (1318, 198512), (2612, 100168), (2636, 99256), (5224, 50084), (5272, 49628), (10448, 25042), (10544, 24814), (12407, 21088), (12521, 20896)]