990722180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{32611}}^1$

素因数の和:32665

約数の個数: 72

約数和(自身を含む): 2498340096

約数和(自身を除く): 1507617916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1519, 2170, 3038, 4340, 6076, 7595, 15190, 30380, 32611, 65222, 130444, 163055, 228277, 326110, 456554, 652220, 913108, 1010941, 1141385, 1597939, 2021882, 2282770, 3195878, 4043764, 4565540, 5054705, 6391756, 7076587, 7989695, 10109410, 14153174, 15979390, 20218820, 28306348, 31958780, 35382935, 49536109, 70765870, 99072218, 141531740, 198144436, 247680545, 495361090, 990722180]

約数ペア:

[(1, 990722180), (2, 495361090), (4, 247680545), (5, 198144436), (7, 141531740), (10, 99072218), (14, 70765870), (20, 49536109), (28, 35382935), (31, 31958780), (35, 28306348), (49, 20218820), (62, 15979390), (70, 14153174), (98, 10109410), (124, 7989695), (140, 7076587), (155, 6391756), (196, 5054705), (217, 4565540), (245, 4043764), (310, 3195878), (434, 2282770), (490, 2021882), (620, 1597939), (868, 1141385), (980, 1010941), (1085, 913108), (1519, 652220), (2170, 456554), (3038, 326110), (4340, 228277), (6076, 163055), (7595, 130444), (15190, 65222), (30380, 32611)]