16020040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 38491200

約数和(自身を除く): 22471160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 152, 190, 197, 214, 380, 394, 428, 535, 760, 788, 856, 985, 1070, 1576, 1970, 2033, 2140, 3743, 3940, 4066, 4280, 7486, 7880, 8132, 10165, 14972, 16264, 18715, 20330, 21079, 29944, 37430, 40660, 42158, 74860, 81320, 84316, 105395, 149720, 168632, 210790, 400501, 421580, 801002, 843160, 1602004, 2002505, 3204008, 4005010, 8010020, 16020040]

約数ペア:

[(1, 16020040), (2, 8010020), (4, 4005010), (5, 3204008), (8, 2002505), (10, 1602004), (19, 843160), (20, 801002), (38, 421580), (40, 400501), (76, 210790), (95, 168632), (107, 149720), (152, 105395), (190, 84316), (197, 81320), (214, 74860), (380, 42158), (394, 40660), (428, 37430), (535, 29944), (760, 21079), (788, 20330), (856, 18715), (985, 16264), (1070, 14972), (1576, 10165), (1970, 8132), (2033, 7880), (2140, 7486), (3743, 4280), (3940, 4066)]