28271145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 56033280

約数和(自身を除く): 27762135

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 37, 57, 95, 105, 111, 133, 185, 259, 285, 383, 399, 555, 665, 703, 777, 1149, 1295, 1915, 1995, 2109, 2681, 3515, 3885, 4921, 5745, 7277, 8043, 10545, 13405, 14171, 14763, 21831, 24605, 36385, 40215, 42513, 50939, 70855, 73815, 99197, 109155, 152817, 212565, 254695, 269249, 297591, 495985, 764085, 807747, 1346245, 1487955, 1884743, 4038735, 5654229, 9423715, 28271145]

約数ペア:

[(1, 28271145), (3, 9423715), (5, 5654229), (7, 4038735), (15, 1884743), (19, 1487955), (21, 1346245), (35, 807747), (37, 764085), (57, 495985), (95, 297591), (105, 269249), (111, 254695), (133, 212565), (185, 152817), (259, 109155), (285, 99197), (383, 73815), (399, 70855), (555, 50939), (665, 42513), (703, 40215), (777, 36385), (1149, 24605), (1295, 21831), (1915, 14763), (1995, 14171), (2109, 13405), (2681, 10545), (3515, 8043), (3885, 7277), (4921, 5745)]