81900140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:327

約数の個数: 96

約数和(自身を含む): 205922304

約数和(自身を除く): 124022164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 113, 124, 140, 155, 167, 217, 226, 310, 334, 434, 452, 565, 620, 668, 791, 835, 868, 1085, 1130, 1169, 1582, 1670, 2170, 2260, 2338, 3164, 3340, 3503, 3955, 4340, 4676, 5177, 5845, 7006, 7910, 10354, 11690, 14012, 15820, 17515, 18871, 20708, 23380, 24521, 25885, 35030, 36239, 37742, 49042, 51770, 70060, 72478, 75484, 94355, 98084, 103540, 122605, 132097, 144956, 181195, 188710, 245210, 264194, 362390, 377420, 490420, 528388, 585001, 660485, 724780, 1170002, 1320970, 2340004, 2641940, 2925005, 4095007, 5850010, 8190014, 11700020, 16380028, 20475035, 40950070, 81900140]

約数ペア:

[(1, 81900140), (2, 40950070), (4, 20475035), (5, 16380028), (7, 11700020), (10, 8190014), (14, 5850010), (20, 4095007), (28, 2925005), (31, 2641940), (35, 2340004), (62, 1320970), (70, 1170002), (113, 724780), (124, 660485), (140, 585001), (155, 528388), (167, 490420), (217, 377420), (226, 362390), (310, 264194), (334, 245210), (434, 188710), (452, 181195), (565, 144956), (620, 132097), (668, 122605), (791, 103540), (835, 98084), (868, 94355), (1085, 75484), (1130, 72478), (1169, 70060), (1582, 51770), (1670, 49042), (2170, 37742), (2260, 36239), (2338, 35030), (3164, 25885), (3340, 24521), (3503, 23380), (3955, 20708), (4340, 18871), (4676, 17515), (5177, 15820), (5845, 14012), (7006, 11690), (7910, 10354)]