20392730

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:614

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 17830630

約数列:

[1, 2, 5, 10, 31, 62, 155, 157, 310, 314, 419, 785, 838, 1570, 2095, 4190, 4867, 9734, 12989, 24335, 25978, 48670, 64945, 65783, 129890, 131566, 328915, 657830, 2039273, 4078546, 10196365, 20392730]

約数ペア:

[(1, 20392730), (2, 10196365), (5, 4078546), (10, 2039273), (31, 657830), (62, 328915), (155, 131566), (157, 129890), (310, 65783), (314, 64945), (419, 48670), (785, 25978), (838, 24335), (1570, 12989), (2095, 9734), (4190, 4867)]