1900170215

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1373}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 2407116096

約数和(自身を除く): 506945881

約数列:

[1, 5, 41, 43, 157, 205, 215, 785, 1373, 1763, 6437, 6751, 6865, 8815, 32185, 33755, 56293, 59039, 215561, 276791, 281465, 295195, 1077805, 1383955, 2420599, 8838001, 9269123, 12102995, 44190005, 46345615, 380034043, 1900170215]

約数ペア:

[(1, 1900170215), (5, 380034043), (41, 46345615), (43, 44190005), (157, 12102995), (205, 9269123), (215, 8838001), (785, 2420599), (1373, 1383955), (1763, 1077805), (6437, 295195), (6751, 281465), (6865, 276791), (8815, 215561), (32185, 59039), (33755, 56293)]