78215870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{3821}}^1$

素因数の和:3940

約数の個数: 32

約数和(自身を含む): 148599360

約数和(自身を除く): 70383490

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 2047, 3821, 4094, 7642, 10235, 19105, 20470, 38210, 87883, 175766, 340069, 439415, 680138, 878830, 1700345, 3400690, 7821587, 15643174, 39107935, 78215870]

約数ペア:

[(1, 78215870), (2, 39107935), (5, 15643174), (10, 7821587), (23, 3400690), (46, 1700345), (89, 878830), (115, 680138), (178, 439415), (230, 340069), (445, 175766), (890, 87883), (2047, 38210), (3821, 20470), (4094, 19105), (7642, 10235)]