200918440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{521}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 469048320

約数和(自身を除く): 268129880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 311, 521, 620, 622, 1042, 1240, 1244, 1555, 2084, 2488, 2605, 3110, 4168, 5210, 6220, 9641, 10420, 12440, 16151, 19282, 20840, 32302, 38564, 48205, 64604, 77128, 80755, 96410, 129208, 161510, 162031, 192820, 323020, 324062, 385640, 646040, 648124, 810155, 1296248, 1620310, 3240620, 5022961, 6481240, 10045922, 20091844, 25114805, 40183688, 50229610, 100459220, 200918440]

約数ペア:

[(1, 200918440), (2, 100459220), (4, 50229610), (5, 40183688), (8, 25114805), (10, 20091844), (20, 10045922), (31, 6481240), (40, 5022961), (62, 3240620), (124, 1620310), (155, 1296248), (248, 810155), (310, 648124), (311, 646040), (521, 385640), (620, 324062), (622, 323020), (1042, 192820), (1240, 162031), (1244, 161510), (1555, 129208), (2084, 96410), (2488, 80755), (2605, 77128), (3110, 64604), (4168, 48205), (5210, 38564), (6220, 32302), (9641, 20840), (10420, 19282), (12440, 16151)]