20172666420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{855499}}^1$

素因数の和:855645

約数の個数: 72

約数和(自身を含む): 61657596000

約数和(自身を除く): 41484929580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3930, 4716, 5895, 7860, 11790, 23580, 855499, 1710998, 2566497, 3421996, 4277495, 5132994, 7699491, 8554990, 10265988, 12832485, 15398982, 17109980, 25664970, 30797964, 38497455, 51329940, 76994910, 112070369, 153989820, 224140738, 336211107, 448281476, 560351845, 672422214, 1008633321, 1120703690, 1344844428, 1681055535, 2017266642, 2241407380, 3362111070, 4034533284, 5043166605, 6724222140, 10086333210, 20172666420]

約数ペア:

[(1, 20172666420), (2, 10086333210), (3, 6724222140), (4, 5043166605), (5, 4034533284), (6, 3362111070), (9, 2241407380), (10, 2017266642), (12, 1681055535), (15, 1344844428), (18, 1120703690), (20, 1008633321), (30, 672422214), (36, 560351845), (45, 448281476), (60, 336211107), (90, 224140738), (131, 153989820), (180, 112070369), (262, 76994910), (393, 51329940), (524, 38497455), (655, 30797964), (786, 25664970), (1179, 17109980), (1310, 15398982), (1572, 12832485), (1965, 10265988), (2358, 8554990), (2620, 7699491), (3930, 5132994), (4716, 4277495), (5895, 3421996), (7860, 2566497), (11790, 1710998), (23580, 855499)]