20688707520

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{552583}}^1$

素因数の和:552619

約数の個数: 168

約数和(自身を含む): 76634559456

約数和(自身を除く): 55945851936

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 360, 390, 416, 468, 480, 520, 576, 585, 624, 720, 780, 832, 936, 960, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 2496, 2880, 3120, 3744, 4160, 4680, 6240, 7488, 9360, 12480, 18720, 37440, 552583, 1105166, 1657749, 2210332, 2762915, 3315498, 4420664, 4973247, 5525830, 6630996, 7183579, 8288745, 8841328, 9946494, 11051660, 13261992, 14367158, 16577490, 17682656, 19892988, 21550737, 22103320, 24866235, 26523984, 28734316, 33154980, 35365312, 35917895, 39785976, 43101474, 44206640, 49732470, 53047968, 57468632, 64652211, 66309960, 71835790, 79571952, 86202948, 88413280, 99464940, 106095936, 107753685, 114937264, 129304422, 132619920, 143671580, 159143904, 172405896, 176826560, 198929880, 215507370, 229874528, 258608844, 265239840, 287343160, 318287808, 323261055, 344811792, 397859760, 431014740, 459749056, 517217688, 530479680, 574686320, 646522110, 689623584, 795719520, 862029480, 1034435376, 1149372640, 1293044220, 1379247168, 1591439040, 1724058960, 2068870752, 2298745280, 2586088440, 3448117920, 4137741504, 5172176880, 6896235840, 10344353760, 20688707520]

約数ペア:

[(1, 20688707520), (2, 10344353760), (3, 6896235840), (4, 5172176880), (5, 4137741504), (6, 3448117920), (8, 2586088440), (9, 2298745280), (10, 2068870752), (12, 1724058960), (13, 1591439040), (15, 1379247168), (16, 1293044220), (18, 1149372640), (20, 1034435376), (24, 862029480), (26, 795719520), (30, 689623584), (32, 646522110), (36, 574686320), (39, 530479680), (40, 517217688), (45, 459749056), (48, 431014740), (52, 397859760), (60, 344811792), (64, 323261055), (65, 318287808), (72, 287343160), (78, 265239840), (80, 258608844), (90, 229874528), (96, 215507370), (104, 198929880), (117, 176826560), (120, 172405896), (130, 159143904), (144, 143671580), (156, 132619920), (160, 129304422), (180, 114937264), (192, 107753685), (195, 106095936), (208, 99464940), (234, 88413280), (240, 86202948), (260, 79571952), (288, 71835790), (312, 66309960), (320, 64652211), (360, 57468632), (390, 53047968), (416, 49732470), (468, 44206640), (480, 43101474), (520, 39785976), (576, 35917895), (585, 35365312), (624, 33154980), (720, 28734316), (780, 26523984), (832, 24866235), (936, 22103320), (960, 21550737), (1040, 19892988), (1170, 17682656), (1248, 16577490), (1440, 14367158), (1560, 13261992), (1872, 11051660), (2080, 9946494), (2340, 8841328), (2496, 8288745), (2880, 7183579), (3120, 6630996), (3744, 5525830), (4160, 4973247), (4680, 4420664), (6240, 3315498), (7488, 2762915), (9360, 2210332), (12480, 1657749), (18720, 1105166), (37440, 552583)]