25440645

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1993}}^1$

素因数の和:2061

約数の個数: 32

約数和(自身を含む): 43644672

約数和(自身を除く): 18204027

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1993, 2553, 4255, 5979, 9965, 12765, 29895, 45839, 73741, 137517, 221223, 229195, 368705, 687585, 1106115, 1696043, 5088129, 8480215, 25440645]

約数ペア:

[(1, 25440645), (3, 8480215), (5, 5088129), (15, 1696043), (23, 1106115), (37, 687585), (69, 368705), (111, 229195), (115, 221223), (185, 137517), (345, 73741), (555, 45839), (851, 29895), (1993, 12765), (2553, 9965), (4255, 5979)]