1920647525

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{317}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 2530351440

約数和(自身を除く): 609703915

約数列:

[1, 5, 25, 29, 61, 137, 145, 305, 317, 685, 725, 1525, 1585, 1769, 3425, 3973, 7925, 8357, 8845, 9193, 19337, 19865, 41785, 43429, 44225, 45965, 96685, 99325, 208925, 217145, 229825, 242353, 483425, 560773, 1085725, 1211765, 1259441, 2649169, 2803865, 6058825, 6297205, 13245845, 14019325, 31486025, 66229225, 76825901, 384129505, 1920647525]

約数ペア:

[(1, 1920647525), (5, 384129505), (25, 76825901), (29, 66229225), (61, 31486025), (137, 14019325), (145, 13245845), (305, 6297205), (317, 6058825), (685, 2803865), (725, 2649169), (1525, 1259441), (1585, 1211765), (1769, 1085725), (3425, 560773), (3973, 483425), (7925, 242353), (8357, 229825), (8845, 217145), (9193, 208925), (19337, 99325), (19865, 96685), (41785, 45965), (43429, 44225)]