2161890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:193

約数の個数: 80

約数和(自身を含む): 6194232

約数和(自身を除く): 4032342

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 157, 162, 170, 255, 270, 306, 314, 405, 459, 471, 510, 765, 785, 810, 918, 942, 1377, 1413, 1530, 1570, 2295, 2355, 2669, 2754, 2826, 4239, 4590, 4710, 5338, 6885, 7065, 8007, 8478, 12717, 13345, 13770, 14130, 16014, 21195, 24021, 25434, 26690, 40035, 42390, 48042, 63585, 72063, 80070, 120105, 127170, 144126, 216189, 240210, 360315, 432378, 720630, 1080945, 2161890]

約数ペア:

[(1, 2161890), (2, 1080945), (3, 720630), (5, 432378), (6, 360315), (9, 240210), (10, 216189), (15, 144126), (17, 127170), (18, 120105), (27, 80070), (30, 72063), (34, 63585), (45, 48042), (51, 42390), (54, 40035), (81, 26690), (85, 25434), (90, 24021), (102, 21195), (135, 16014), (153, 14130), (157, 13770), (162, 13345), (170, 12717), (255, 8478), (270, 8007), (306, 7065), (314, 6885), (405, 5338), (459, 4710), (471, 4590), (510, 4239), (765, 2826), (785, 2754), (810, 2669), (918, 2355), (942, 2295), (1377, 1570), (1413, 1530)]