19843460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10903}}^1$

素因数の和:10932

約数の個数: 48

約数和(自身を含む): 51292416

約数和(自身を除く): 31448956

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, 10903, 21806, 43612, 54515, 76321, 109030, 141739, 152642, 218060, 283478, 305284, 381605, 566956, 708695, 763210, 992173, 1417390, 1526420, 1984346, 2834780, 3968692, 4960865, 9921730, 19843460]

約数ペア:

[(1, 19843460), (2, 9921730), (4, 4960865), (5, 3968692), (7, 2834780), (10, 1984346), (13, 1526420), (14, 1417390), (20, 992173), (26, 763210), (28, 708695), (35, 566956), (52, 381605), (65, 305284), (70, 283478), (91, 218060), (130, 152642), (140, 141739), (182, 109030), (260, 76321), (364, 54515), (455, 43612), (910, 21806), (1820, 10903)]