204221640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{243121}}^1$

素因数の和:243142

約数の個数: 64

約数和(自身を含む): 700191360

約数和(自身を除く): 495969720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 243121, 486242, 729363, 972484, 1215605, 1458726, 1701847, 1944968, 2431210, 2917452, 3403694, 3646815, 4862420, 5105541, 5834904, 6807388, 7293630, 8509235, 9724840, 10211082, 13614776, 14587260, 17018470, 20422164, 25527705, 29174520, 34036940, 40844328, 51055410, 68073880, 102110820, 204221640]

約数ペア:

[(1, 204221640), (2, 102110820), (3, 68073880), (4, 51055410), (5, 40844328), (6, 34036940), (7, 29174520), (8, 25527705), (10, 20422164), (12, 17018470), (14, 14587260), (15, 13614776), (20, 10211082), (21, 9724840), (24, 8509235), (28, 7293630), (30, 6807388), (35, 5834904), (40, 5105541), (42, 4862420), (56, 3646815), (60, 3403694), (70, 2917452), (84, 2431210), (105, 1944968), (120, 1701847), (140, 1458726), (168, 1215605), (210, 972484), (280, 729363), (420, 486242), (840, 243121)]