20898318430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1\times {\mathrm{14923}}^1$

素因数の和:15409

約数の個数: 64

約数和(自身を含む): 42551308800

約数和(自身を除く): 21652990370

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 439, 638, 878, 1595, 2195, 3190, 4390, 4829, 9658, 12731, 14923, 24145, 25462, 29846, 48290, 63655, 74615, 127310, 140041, 149230, 164153, 280082, 328306, 432767, 700205, 820765, 865534, 1400410, 1641530, 2163835, 4327670, 4760437, 6551197, 9520874, 13102394, 23802185, 32755985, 47604370, 65511970, 72063167, 144126334, 189984713, 360315835, 379969426, 720631670, 949923565, 1899847130, 2089831843, 4179663686, 10449159215, 20898318430]

約数ペア:

[(1, 20898318430), (2, 10449159215), (5, 4179663686), (10, 2089831843), (11, 1899847130), (22, 949923565), (29, 720631670), (55, 379969426), (58, 360315835), (110, 189984713), (145, 144126334), (290, 72063167), (319, 65511970), (439, 47604370), (638, 32755985), (878, 23802185), (1595, 13102394), (2195, 9520874), (3190, 6551197), (4390, 4760437), (4829, 4327670), (9658, 2163835), (12731, 1641530), (14923, 1400410), (24145, 865534), (25462, 820765), (29846, 700205), (48290, 432767), (63655, 328306), (74615, 280082), (127310, 164153), (140041, 149230)]