281856770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1433}}^1$

素因数の和:1559

約数の個数: 64

約数和(自身を含む): 585416160

約数和(自身を除く): 303559390

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 89, 130, 170, 178, 221, 442, 445, 890, 1105, 1157, 1433, 1513, 2210, 2314, 2866, 3026, 5785, 7165, 7565, 11570, 14330, 15130, 18629, 19669, 24361, 37258, 39338, 48722, 93145, 98345, 121805, 127537, 186290, 196690, 243610, 255074, 316693, 633386, 637685, 1275370, 1583465, 1657981, 2168129, 3166930, 3315962, 4336258, 8289905, 10840645, 16579810, 21681290, 28185677, 56371354, 140928385, 281856770]

約数ペア:

[(1, 281856770), (2, 140928385), (5, 56371354), (10, 28185677), (13, 21681290), (17, 16579810), (26, 10840645), (34, 8289905), (65, 4336258), (85, 3315962), (89, 3166930), (130, 2168129), (170, 1657981), (178, 1583465), (221, 1275370), (442, 637685), (445, 633386), (890, 316693), (1105, 255074), (1157, 243610), (1433, 196690), (1513, 186290), (2210, 127537), (2314, 121805), (2866, 98345), (3026, 93145), (5785, 48722), (7165, 39338), (7565, 37258), (11570, 24361), (14330, 19669), (15130, 18629)]