19713650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:587

約数の個数: 48

約数和(自身を含む): 40631328

約数和(自身を除く): 20917678

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 73, 110, 146, 275, 365, 491, 550, 730, 803, 982, 1606, 1825, 2455, 3650, 4015, 4910, 5401, 8030, 10802, 12275, 20075, 24550, 27005, 35843, 40150, 54010, 71686, 135025, 179215, 270050, 358430, 394273, 788546, 896075, 1792150, 1971365, 3942730, 9856825, 19713650]

約数ペア:

[(1, 19713650), (2, 9856825), (5, 3942730), (10, 1971365), (11, 1792150), (22, 896075), (25, 788546), (50, 394273), (55, 358430), (73, 270050), (110, 179215), (146, 135025), (275, 71686), (365, 54010), (491, 40150), (550, 35843), (730, 27005), (803, 24550), (982, 20075), (1606, 12275), (1825, 10802), (2455, 8030), (3650, 5401), (4015, 4910)]