20193661280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{746807}}^1$

素因数の和:746848

約数の個数: 72

約数和(自身を含む): 51659696592

約数和(自身を除く): 31466035312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2704, 3380, 5408, 6760, 13520, 27040, 746807, 1493614, 2987228, 3734035, 5974456, 7468070, 9708491, 11948912, 14936140, 19416982, 23897824, 29872280, 38833964, 48542455, 59744560, 77667928, 97084910, 119489120, 126210383, 155335856, 194169820, 252420766, 310671712, 388339640, 504841532, 631051915, 776679280, 1009683064, 1262103830, 1553358560, 2019366128, 2524207660, 4038732256, 5048415320, 10096830640, 20193661280]

約数ペア:

[(1, 20193661280), (2, 10096830640), (4, 5048415320), (5, 4038732256), (8, 2524207660), (10, 2019366128), (13, 1553358560), (16, 1262103830), (20, 1009683064), (26, 776679280), (32, 631051915), (40, 504841532), (52, 388339640), (65, 310671712), (80, 252420766), (104, 194169820), (130, 155335856), (160, 126210383), (169, 119489120), (208, 97084910), (260, 77667928), (338, 59744560), (416, 48542455), (520, 38833964), (676, 29872280), (845, 23897824), (1040, 19416982), (1352, 14936140), (1690, 11948912), (2080, 9708491), (2704, 7468070), (3380, 5974456), (5408, 3734035), (6760, 2987228), (13520, 1493614), (27040, 746807)]