287304640

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:355

約数の個数: 168

約数和(自身を含む): 809957232

約数和(自身を除く): 522652592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 73, 80, 98, 112, 140, 146, 160, 196, 224, 245, 251, 280, 292, 320, 365, 392, 448, 490, 502, 511, 560, 584, 730, 784, 980, 1004, 1022, 1120, 1168, 1255, 1460, 1568, 1757, 1960, 2008, 2044, 2240, 2336, 2510, 2555, 2920, 3136, 3514, 3577, 3920, 4016, 4088, 4672, 5020, 5110, 5840, 7028, 7154, 7840, 8032, 8176, 8785, 10040, 10220, 11680, 12299, 14056, 14308, 15680, 16064, 16352, 17570, 17885, 18323, 20080, 20440, 23360, 24598, 28112, 28616, 32704, 35140, 35770, 36646, 40160, 40880, 49196, 56224, 57232, 61495, 70280, 71540, 73292, 80320, 81760, 91615, 98392, 112448, 114464, 122990, 128261, 140560, 143080, 146584, 163520, 183230, 196784, 228928, 245980, 256522, 281120, 286160, 293168, 366460, 393568, 491960, 513044, 562240, 572320, 586336, 641305, 732920, 787136, 897827, 983920, 1026088, 1144640, 1172672, 1282610, 1465840, 1795654, 1967840, 2052176, 2565220, 2931680, 3591308, 3935680, 4104352, 4489135, 5130440, 5863360, 7182616, 8208704, 8978270, 10260880, 14365232, 17956540, 20521760, 28730464, 35913080, 41043520, 57460928, 71826160, 143652320, 287304640]

約数ペア:

[(1, 287304640), (2, 143652320), (4, 71826160), (5, 57460928), (7, 41043520), (8, 35913080), (10, 28730464), (14, 20521760), (16, 17956540), (20, 14365232), (28, 10260880), (32, 8978270), (35, 8208704), (40, 7182616), (49, 5863360), (56, 5130440), (64, 4489135), (70, 4104352), (73, 3935680), (80, 3591308), (98, 2931680), (112, 2565220), (140, 2052176), (146, 1967840), (160, 1795654), (196, 1465840), (224, 1282610), (245, 1172672), (251, 1144640), (280, 1026088), (292, 983920), (320, 897827), (365, 787136), (392, 732920), (448, 641305), (490, 586336), (502, 572320), (511, 562240), (560, 513044), (584, 491960), (730, 393568), (784, 366460), (980, 293168), (1004, 286160), (1022, 281120), (1120, 256522), (1168, 245980), (1255, 228928), (1460, 196784), (1568, 183230), (1757, 163520), (1960, 146584), (2008, 143080), (2044, 140560), (2240, 128261), (2336, 122990), (2510, 114464), (2555, 112448), (2920, 98392), (3136, 91615), (3514, 81760), (3577, 80320), (3920, 73292), (4016, 71540), (4088, 70280), (4672, 61495), (5020, 57232), (5110, 56224), (5840, 49196), (7028, 40880), (7154, 40160), (7840, 36646), (8032, 35770), (8176, 35140), (8785, 32704), (10040, 28616), (10220, 28112), (11680, 24598), (12299, 23360), (14056, 20440), (14308, 20080), (15680, 18323), (16064, 17885), (16352, 17570)]