881348425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1663}}^1$

素因数の和:1762

約数の個数: 48

約数和(自身を含む): 1225635840

約数和(自身を除く): 344287415

約数列:

[1, 5, 17, 25, 29, 43, 85, 145, 215, 425, 493, 725, 731, 1075, 1247, 1663, 2465, 3655, 6235, 8315, 12325, 18275, 21199, 28271, 31175, 41575, 48227, 71509, 105995, 141355, 241135, 357545, 529975, 706775, 819859, 1205675, 1215653, 1787725, 2073761, 4099295, 6078265, 10368805, 20496475, 30391325, 35253937, 51844025, 176269685, 881348425]

約数ペア:

[(1, 881348425), (5, 176269685), (17, 51844025), (25, 35253937), (29, 30391325), (43, 20496475), (85, 10368805), (145, 6078265), (215, 4099295), (425, 2073761), (493, 1787725), (725, 1215653), (731, 1205675), (1075, 819859), (1247, 706775), (1663, 529975), (2465, 357545), (3655, 241135), (6235, 141355), (8315, 105995), (12325, 71509), (18275, 48227), (21199, 41575), (28271, 31175)]