20672960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{839}}^1$

素因数の和:874

約数の個数: 112

約数和(自身を含む): 61447680

約数和(自身を除く): 40774720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 839, 880, 1120, 1232, 1540, 1678, 1760, 2240, 2464, 3080, 3356, 3520, 4195, 4928, 5873, 6160, 6712, 8390, 9229, 11746, 12320, 13424, 16780, 18458, 23492, 24640, 26848, 29365, 33560, 36916, 46145, 46984, 53696, 58730, 64603, 67120, 73832, 92290, 93968, 117460, 129206, 134240, 147664, 184580, 187936, 234920, 258412, 268480, 295328, 323015, 369160, 375872, 469840, 516824, 590656, 646030, 738320, 939680, 1033648, 1292060, 1476640, 1879360, 2067296, 2584120, 2953280, 4134592, 5168240, 10336480, 20672960]

約数ペア:

[(1, 20672960), (2, 10336480), (4, 5168240), (5, 4134592), (7, 2953280), (8, 2584120), (10, 2067296), (11, 1879360), (14, 1476640), (16, 1292060), (20, 1033648), (22, 939680), (28, 738320), (32, 646030), (35, 590656), (40, 516824), (44, 469840), (55, 375872), (56, 369160), (64, 323015), (70, 295328), (77, 268480), (80, 258412), (88, 234920), (110, 187936), (112, 184580), (140, 147664), (154, 134240), (160, 129206), (176, 117460), (220, 93968), (224, 92290), (280, 73832), (308, 67120), (320, 64603), (352, 58730), (385, 53696), (440, 46984), (448, 46145), (560, 36916), (616, 33560), (704, 29365), (770, 26848), (839, 24640), (880, 23492), (1120, 18458), (1232, 16780), (1540, 13424), (1678, 12320), (1760, 11746), (2240, 9229), (2464, 8390), (3080, 6712), (3356, 6160), (3520, 5873), (4195, 4928)]