28361745

素因数分解:

$3^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:305

約数の個数: 56

約数和(自身を含む): 52883712

約数和(自身を除く): 24521967

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 243, 251, 279, 405, 465, 729, 753, 837, 1215, 1255, 1395, 2259, 2511, 3645, 3765, 4185, 6777, 7533, 7781, 11295, 12555, 20331, 22599, 23343, 33885, 37665, 38905, 60993, 70029, 101655, 112995, 116715, 182979, 210087, 304965, 350145, 630261, 914895, 1050435, 1890783, 3151305, 5672349, 9453915, 28361745]

約数ペア:

[(1, 28361745), (3, 9453915), (5, 5672349), (9, 3151305), (15, 1890783), (27, 1050435), (31, 914895), (45, 630261), (81, 350145), (93, 304965), (135, 210087), (155, 182979), (243, 116715), (251, 112995), (279, 101655), (405, 70029), (465, 60993), (729, 38905), (753, 37665), (837, 33885), (1215, 23343), (1255, 22599), (1395, 20331), (2259, 12555), (2511, 11295), (3645, 7781), (3765, 7533), (4185, 6777)]