18622940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 47037312

約数和(自身を除く): 28414372

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, 613, 620, 868, 980, 1085, 1226, 1519, 2170, 2452, 3038, 3065, 4291, 4340, 6076, 6130, 7595, 8582, 12260, 15190, 17164, 19003, 21455, 30037, 30380, 38006, 42910, 60074, 76012, 85820, 95015, 120148, 133021, 150185, 190030, 266042, 300370, 380060, 532084, 600740, 665105, 931147, 1330210, 1862294, 2660420, 3724588, 4655735, 9311470, 18622940]

約数ペア:

[(1, 18622940), (2, 9311470), (4, 4655735), (5, 3724588), (7, 2660420), (10, 1862294), (14, 1330210), (20, 931147), (28, 665105), (31, 600740), (35, 532084), (49, 380060), (62, 300370), (70, 266042), (98, 190030), (124, 150185), (140, 133021), (155, 120148), (196, 95015), (217, 85820), (245, 76012), (310, 60074), (434, 42910), (490, 38006), (613, 30380), (620, 30037), (868, 21455), (980, 19003), (1085, 17164), (1226, 15190), (1519, 12260), (2170, 8582), (2452, 7595), (3038, 6130), (3065, 6076), (4291, 4340)]