18751460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10303}}^1$

素因数の和:10332

約数の個数: 48

約数和(自身を含む): 48470016

約数和(自身を除く): 29718556

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10303, 20606, 41212, 51515, 72121, 103030, 133939, 144242, 206060, 267878, 288484, 360605, 535756, 669695, 721210, 937573, 1339390, 1442420, 1875146, 2678780, 3750292, 4687865, 9375730, 18751460]

約数ペア:

[(1, 18751460), (2, 9375730), (4, 4687865), (5, 3750292), (7, 2678780), (10, 1875146), (13, 1442420), (14, 1339390), (20, 937573), (26, 721210), (28, 669695), (35, 535756), (52, 360605), (65, 288484), (70, 267878), (91, 206060), (130, 144242), (140, 133939), (182, 103030), (260, 72121), (364, 51515), (455, 41212), (910, 20606), (1820, 10303)]