20051200

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:280

約数の個数: 108

約数和(自身を含む): 53669308

約数和(自身を除く): 33618108

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 241, 256, 260, 320, 325, 400, 416, 482, 520, 640, 650, 800, 832, 964, 1040, 1205, 1280, 1300, 1600, 1664, 1928, 2080, 2410, 2600, 3133, 3200, 3328, 3856, 4160, 4820, 5200, 6025, 6266, 6400, 7712, 8320, 9640, 10400, 12050, 12532, 15424, 15665, 16640, 19280, 20800, 24100, 25064, 30848, 31330, 38560, 41600, 48200, 50128, 61696, 62660, 77120, 78325, 83200, 96400, 100256, 125320, 154240, 156650, 192800, 200512, 250640, 308480, 313300, 385600, 401024, 501280, 626600, 771200, 802048, 1002560, 1253200, 1542400, 2005120, 2506400, 4010240, 5012800, 10025600, 20051200]

約数ペア:

[(1, 20051200), (2, 10025600), (4, 5012800), (5, 4010240), (8, 2506400), (10, 2005120), (13, 1542400), (16, 1253200), (20, 1002560), (25, 802048), (26, 771200), (32, 626600), (40, 501280), (50, 401024), (52, 385600), (64, 313300), (65, 308480), (80, 250640), (100, 200512), (104, 192800), (128, 156650), (130, 154240), (160, 125320), (200, 100256), (208, 96400), (241, 83200), (256, 78325), (260, 77120), (320, 62660), (325, 61696), (400, 50128), (416, 48200), (482, 41600), (520, 38560), (640, 31330), (650, 30848), (800, 25064), (832, 24100), (964, 20800), (1040, 19280), (1205, 16640), (1280, 15665), (1300, 15424), (1600, 12532), (1664, 12050), (1928, 10400), (2080, 9640), (2410, 8320), (2600, 7712), (3133, 6400), (3200, 6266), (3328, 6025), (3856, 5200), (4160, 4820)]