661342140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{3019}}^1$

素因数の和:4251

約数の個数: 72

約数和(自身を含む): 2008384560

約数和(自身を除く): 1347042420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1217, 2434, 3019, 3651, 4868, 6038, 6085, 7302, 9057, 10953, 12076, 12170, 14604, 15095, 18114, 18255, 21906, 24340, 27171, 30190, 36228, 36510, 43812, 45285, 54342, 54765, 60380, 73020, 90570, 108684, 109530, 135855, 181140, 219060, 271710, 543420, 3674123, 7348246, 11022369, 14696492, 18370615, 22044738, 33067107, 36741230, 44089476, 55111845, 66134214, 73482460, 110223690, 132268428, 165335535, 220447380, 330671070, 661342140]

約数ペア:

[(1, 661342140), (2, 330671070), (3, 220447380), (4, 165335535), (5, 132268428), (6, 110223690), (9, 73482460), (10, 66134214), (12, 55111845), (15, 44089476), (18, 36741230), (20, 33067107), (30, 22044738), (36, 18370615), (45, 14696492), (60, 11022369), (90, 7348246), (180, 3674123), (1217, 543420), (2434, 271710), (3019, 219060), (3651, 181140), (4868, 135855), (6038, 109530), (6085, 108684), (7302, 90570), (9057, 73020), (10953, 60380), (12076, 54765), (12170, 54342), (14604, 45285), (15095, 43812), (18114, 36510), (18255, 36228), (21906, 30190), (24340, 27171)]