313156670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:657

約数の個数: 48

約数和(自身を含む): 599114880

約数和(自身を除く): 285958210

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 223, 361, 389, 446, 722, 778, 1115, 1805, 1945, 2230, 3610, 3890, 4237, 7391, 8474, 14782, 21185, 36955, 42370, 73910, 80503, 86747, 140429, 161006, 173494, 280858, 402515, 433735, 702145, 805030, 867470, 1404290, 1648193, 3296386, 8240965, 16481930, 31315667, 62631334, 156578335, 313156670]

約数ペア:

[(1, 313156670), (2, 156578335), (5, 62631334), (10, 31315667), (19, 16481930), (38, 8240965), (95, 3296386), (190, 1648193), (223, 1404290), (361, 867470), (389, 805030), (446, 702145), (722, 433735), (778, 402515), (1115, 280858), (1805, 173494), (1945, 161006), (2230, 140429), (3610, 86747), (3890, 80503), (4237, 73910), (7391, 42370), (8474, 36955), (14782, 21185)]