380020880

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{24113}}^1$

素因数の和:24323

約数の個数: 40

約数和(自身を含む): 888070392

約数和(自身を除く): 508049512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 15760, 24113, 48226, 96452, 120565, 192904, 241130, 385808, 482260, 964520, 1929040, 4750261, 9500522, 19001044, 23751305, 38002088, 47502610, 76004176, 95005220, 190010440, 380020880]

約数ペア:

[(1, 380020880), (2, 190010440), (4, 95005220), (5, 76004176), (8, 47502610), (10, 38002088), (16, 23751305), (20, 19001044), (40, 9500522), (80, 4750261), (197, 1929040), (394, 964520), (788, 482260), (985, 385808), (1576, 241130), (1970, 192904), (3152, 120565), (3940, 96452), (7880, 48226), (15760, 24113)]