255983770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{977}}^1$

素因数の和:1207

約数の個数: 64

約数和(自身を含む): 557694720

約数和(自身を除く): 301710950

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 197, 266, 394, 665, 977, 985, 1330, 1379, 1954, 1970, 2758, 3743, 4885, 6839, 6895, 7486, 9770, 13678, 13790, 18563, 18715, 26201, 34195, 37126, 37430, 52402, 68390, 92815, 129941, 131005, 185630, 192469, 259882, 262010, 384938, 649705, 962345, 1299410, 1347283, 1924690, 2694566, 3656911, 6736415, 7313822, 13472830, 18284555, 25598377, 36569110, 51196754, 127991885, 255983770]

約数ペア:

[(1, 255983770), (2, 127991885), (5, 51196754), (7, 36569110), (10, 25598377), (14, 18284555), (19, 13472830), (35, 7313822), (38, 6736415), (70, 3656911), (95, 2694566), (133, 1924690), (190, 1347283), (197, 1299410), (266, 962345), (394, 649705), (665, 384938), (977, 262010), (985, 259882), (1330, 192469), (1379, 185630), (1954, 131005), (1970, 129941), (2758, 92815), (3743, 68390), (4885, 52402), (6839, 37430), (6895, 37126), (7486, 34195), (9770, 26201), (13678, 18715), (13790, 18563)]