815482525

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:367

約数の個数: 72

約数和(自身を含む): 1215625320

約数和(自身を除く): 400142795

約数列:

[1, 5, 11, 13, 25, 55, 65, 89, 121, 143, 233, 275, 325, 445, 605, 715, 979, 1157, 1165, 1573, 2225, 2563, 3025, 3029, 3575, 4895, 5785, 5825, 7865, 10769, 12727, 12815, 15145, 20737, 24475, 28193, 28925, 33319, 39325, 53845, 63635, 64075, 75725, 103685, 139997, 140965, 166595, 228107, 269225, 269581, 318175, 366509, 518425, 699985, 704825, 832975, 1140535, 1347905, 1832545, 2509177, 2965391, 3499925, 5702675, 6739525, 9162725, 12545885, 14826955, 32619301, 62729425, 74134775, 163096505, 815482525]

約数ペア:

[(1, 815482525), (5, 163096505), (11, 74134775), (13, 62729425), (25, 32619301), (55, 14826955), (65, 12545885), (89, 9162725), (121, 6739525), (143, 5702675), (233, 3499925), (275, 2965391), (325, 2509177), (445, 1832545), (605, 1347905), (715, 1140535), (979, 832975), (1157, 704825), (1165, 699985), (1573, 518425), (2225, 366509), (2563, 318175), (3025, 269581), (3029, 269225), (3575, 228107), (4895, 166595), (5785, 140965), (5825, 139997), (7865, 103685), (10769, 75725), (12727, 64075), (12815, 63635), (15145, 53845), (20737, 39325), (24475, 33319), (28193, 28925)]