72137890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28513}}^1$

素因数の和:28554

約数の個数: 32

約数和(自身を含む): 147816576

約数和(自身を除く): 75678686

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 28513, 57026, 142565, 285130, 313643, 627286, 655799, 1311598, 1568215, 3136430, 3278995, 6557990, 7213789, 14427578, 36068945, 72137890]

約数ペア:

[(1, 72137890), (2, 36068945), (5, 14427578), (10, 7213789), (11, 6557990), (22, 3278995), (23, 3136430), (46, 1568215), (55, 1311598), (110, 655799), (115, 627286), (230, 313643), (253, 285130), (506, 142565), (1265, 57026), (2530, 28513)]