647557450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:272

約数の個数: 96

約数和(自身を含む): 1294917120

約数和(自身を除く): 647359670

約数列:

[1, 2, 5, 10, 25, 31, 50, 59, 62, 73, 97, 118, 146, 155, 194, 295, 310, 365, 485, 590, 730, 775, 970, 1475, 1550, 1825, 1829, 2263, 2425, 2950, 3007, 3650, 3658, 4307, 4526, 4850, 5723, 6014, 7081, 8614, 9145, 11315, 11446, 14162, 15035, 18290, 21535, 22630, 28615, 30070, 35405, 43070, 45725, 56575, 57230, 70810, 75175, 91450, 107675, 113150, 133517, 143075, 150350, 177025, 177413, 215350, 219511, 267034, 286150, 354050, 354826, 417779, 439022, 667585, 835558, 887065, 1097555, 1335170, 1774130, 2088895, 2195110, 3337925, 4177790, 4435325, 5487775, 6675850, 8870650, 10444475, 10975550, 12951149, 20888950, 25902298, 64755745, 129511490, 323778725, 647557450]

約数ペア:

[(1, 647557450), (2, 323778725), (5, 129511490), (10, 64755745), (25, 25902298), (31, 20888950), (50, 12951149), (59, 10975550), (62, 10444475), (73, 8870650), (97, 6675850), (118, 5487775), (146, 4435325), (155, 4177790), (194, 3337925), (295, 2195110), (310, 2088895), (365, 1774130), (485, 1335170), (590, 1097555), (730, 887065), (775, 835558), (970, 667585), (1475, 439022), (1550, 417779), (1825, 354826), (1829, 354050), (2263, 286150), (2425, 267034), (2950, 219511), (3007, 215350), (3650, 177413), (3658, 177025), (4307, 150350), (4526, 143075), (4850, 133517), (5723, 113150), (6014, 107675), (7081, 91450), (8614, 75175), (9145, 70810), (11315, 57230), (11446, 56575), (14162, 45725), (15035, 43070), (18290, 35405), (21535, 30070), (22630, 28615)]