28044940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18211}}^1$

素因数の和:18238

約数の個数: 48

約数和(自身を含む): 73430784

約数和(自身を除く): 45385844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18211, 36422, 72844, 91055, 127477, 182110, 200321, 254954, 364220, 400642, 509908, 637385, 801284, 1001605, 1274770, 1402247, 2003210, 2549540, 2804494, 4006420, 5608988, 7011235, 14022470, 28044940]

約数ペア:

[(1, 28044940), (2, 14022470), (4, 7011235), (5, 5608988), (7, 4006420), (10, 2804494), (11, 2549540), (14, 2003210), (20, 1402247), (22, 1274770), (28, 1001605), (35, 801284), (44, 637385), (55, 509908), (70, 400642), (77, 364220), (110, 254954), (140, 200321), (154, 182110), (220, 127477), (308, 91055), (385, 72844), (770, 36422), (1540, 18211)]