21439934800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{643}}^1\times {\mathrm{2689}}^1$

素因数の和:3381

約数の個数: 120

約数和(自身を含む): 53273534720

約数和(自身を除く): 31833599920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 643, 775, 1240, 1286, 1550, 2480, 2572, 2689, 3100, 3215, 5144, 5378, 6200, 6430, 10288, 10756, 12400, 12860, 13445, 16075, 19933, 21512, 25720, 26890, 32150, 39866, 43024, 51440, 53780, 64300, 67225, 79732, 83359, 99665, 107560, 128600, 134450, 159464, 166718, 199330, 215120, 257200, 268900, 318928, 333436, 398660, 416795, 498325, 537800, 666872, 797320, 833590, 996650, 1075600, 1333744, 1594640, 1667180, 1729027, 1993300, 2083975, 3334360, 3458054, 3986600, 4167950, 6668720, 6916108, 7973200, 8335900, 8645135, 13832216, 16671800, 17290270, 27664432, 33343600, 34580540, 43225675, 53599837, 69161080, 86451350, 107199674, 138322160, 172902700, 214399348, 267999185, 345805400, 428798696, 535998370, 691610800, 857597392, 1071996740, 1339995925, 2143993480, 2679991850, 4287986960, 5359983700, 10719967400, 21439934800]

約数ペア:

[(1, 21439934800), (2, 10719967400), (4, 5359983700), (5, 4287986960), (8, 2679991850), (10, 2143993480), (16, 1339995925), (20, 1071996740), (25, 857597392), (31, 691610800), (40, 535998370), (50, 428798696), (62, 345805400), (80, 267999185), (100, 214399348), (124, 172902700), (155, 138322160), (200, 107199674), (248, 86451350), (310, 69161080), (400, 53599837), (496, 43225675), (620, 34580540), (643, 33343600), (775, 27664432), (1240, 17290270), (1286, 16671800), (1550, 13832216), (2480, 8645135), (2572, 8335900), (2689, 7973200), (3100, 6916108), (3215, 6668720), (5144, 4167950), (5378, 3986600), (6200, 3458054), (6430, 3334360), (10288, 2083975), (10756, 1993300), (12400, 1729027), (12860, 1667180), (13445, 1594640), (16075, 1333744), (19933, 1075600), (21512, 996650), (25720, 833590), (26890, 797320), (32150, 666872), (39866, 537800), (43024, 498325), (51440, 416795), (53780, 398660), (64300, 333436), (67225, 318928), (79732, 268900), (83359, 257200), (99665, 215120), (107560, 199330), (128600, 166718), (134450, 159464)]