1287775440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{255511}}^1$

素因数の和:255537

約数の個数: 120

約数和(自身を含む): 4942624128

約数和(自身を除く): 3654848688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 255511, 511022, 766533, 1022044, 1277555, 1533066, 1788577, 2044088, 2299599, 2555110, 3066132, 3577154, 3832665, 4088176, 4599198, 5110220, 5365731, 6132264, 7154308, 7665330, 8942885, 9198396, 10220440, 10731462, 11497995, 12264528, 14308616, 15330660, 16097193, 17885770, 18396792, 20440880, 21462924, 22995990, 26828655, 28617232, 30661320, 32194386, 35771540, 36793584, 42925848, 45991980, 53657310, 61322640, 64388772, 71543080, 80485965, 85851696, 91983960, 107314620, 128777544, 143086160, 160971930, 183967920, 214629240, 257555088, 321943860, 429258480, 643887720, 1287775440]

約数ペア:

[(1, 1287775440), (2, 643887720), (3, 429258480), (4, 321943860), (5, 257555088), (6, 214629240), (7, 183967920), (8, 160971930), (9, 143086160), (10, 128777544), (12, 107314620), (14, 91983960), (15, 85851696), (16, 80485965), (18, 71543080), (20, 64388772), (21, 61322640), (24, 53657310), (28, 45991980), (30, 42925848), (35, 36793584), (36, 35771540), (40, 32194386), (42, 30661320), (45, 28617232), (48, 26828655), (56, 22995990), (60, 21462924), (63, 20440880), (70, 18396792), (72, 17885770), (80, 16097193), (84, 15330660), (90, 14308616), (105, 12264528), (112, 11497995), (120, 10731462), (126, 10220440), (140, 9198396), (144, 8942885), (168, 7665330), (180, 7154308), (210, 6132264), (240, 5365731), (252, 5110220), (280, 4599198), (315, 4088176), (336, 3832665), (360, 3577154), (420, 3066132), (504, 2555110), (560, 2299599), (630, 2044088), (720, 1788577), (840, 1533066), (1008, 1277555), (1260, 1022044), (1680, 766533), (2520, 511022), (5040, 255511)]