261542590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 493292592

約数和(自身を除く): 231750002

約数列:

[1, 2, 5, 10, 29, 58, 137, 145, 227, 274, 290, 454, 685, 841, 1135, 1370, 1682, 2270, 3973, 4205, 6583, 7946, 8410, 13166, 19865, 31099, 32915, 39730, 62198, 65830, 115217, 155495, 190907, 230434, 310990, 381814, 576085, 901871, 954535, 1152170, 1803742, 1909070, 4509355, 9018710, 26154259, 52308518, 130771295, 261542590]

約数ペア:

[(1, 261542590), (2, 130771295), (5, 52308518), (10, 26154259), (29, 9018710), (58, 4509355), (137, 1909070), (145, 1803742), (227, 1152170), (274, 954535), (290, 901871), (454, 576085), (685, 381814), (841, 310990), (1135, 230434), (1370, 190907), (1682, 155495), (2270, 115217), (3973, 65830), (4205, 62198), (6583, 39730), (7946, 32915), (8410, 31099), (13166, 19865)]