18783465325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{27779}}^1$

素因数の和:27886

約数の個数: 48

約数和(自身を含む): 25918073280

約数和(自身を除く): 7134607955

約数列:

[1, 5, 17, 25, 37, 43, 85, 185, 215, 425, 629, 731, 925, 1075, 1591, 3145, 3655, 7955, 15725, 18275, 27047, 27779, 39775, 135235, 138895, 472243, 676175, 694475, 1027823, 1194497, 2361215, 5139115, 5972485, 11806075, 17472991, 20306449, 25695575, 29862425, 44196389, 87364955, 101532245, 220981945, 436824775, 507661225, 751338613, 1104909725, 3756693065, 18783465325]

約数ペア:

[(1, 18783465325), (5, 3756693065), (17, 1104909725), (25, 751338613), (37, 507661225), (43, 436824775), (85, 220981945), (185, 101532245), (215, 87364955), (425, 44196389), (629, 29862425), (731, 25695575), (925, 20306449), (1075, 17472991), (1591, 11806075), (3145, 5972485), (3655, 5139115), (7955, 2361215), (15725, 1194497), (18275, 1027823), (27047, 694475), (27779, 676175), (39775, 472243), (135235, 138895)]