51916815

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 97200000

約数和(自身を除く): 45283185

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 89, 135, 145, 149, 261, 267, 435, 445, 447, 745, 783, 801, 1305, 1335, 1341, 2235, 2403, 2581, 3915, 4005, 4023, 4321, 6705, 7743, 12015, 12905, 12963, 13261, 20115, 21605, 23229, 38715, 38889, 39783, 64815, 66305, 69687, 116145, 116667, 119349, 194445, 198915, 348435, 358047, 384569, 583335, 596745, 1153707, 1790235, 1922845, 3461121, 5768535, 10383363, 17305605, 51916815]

約数ペア:

[(1, 51916815), (3, 17305605), (5, 10383363), (9, 5768535), (15, 3461121), (27, 1922845), (29, 1790235), (45, 1153707), (87, 596745), (89, 583335), (135, 384569), (145, 358047), (149, 348435), (261, 198915), (267, 194445), (435, 119349), (445, 116667), (447, 116145), (745, 69687), (783, 66305), (801, 64815), (1305, 39783), (1335, 38889), (1341, 38715), (2235, 23229), (2403, 21605), (2581, 20115), (3915, 13261), (4005, 12963), (4023, 12905), (4321, 12015), (6705, 7743)]