20812250

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 21644710

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 59, 83, 85, 118, 125, 166, 170, 250, 295, 415, 425, 590, 830, 850, 1003, 1411, 1475, 2006, 2075, 2125, 2822, 2950, 4150, 4250, 4897, 5015, 7055, 7375, 9794, 10030, 10375, 14110, 14750, 20750, 24485, 25075, 35275, 48970, 50150, 70550, 83249, 122425, 125375, 166498, 176375, 244850, 250750, 352750, 416245, 612125, 832490, 1224250, 2081225, 4162450, 10406125, 20812250]

約数ペア:

[(1, 20812250), (2, 10406125), (5, 4162450), (10, 2081225), (17, 1224250), (25, 832490), (34, 612125), (50, 416245), (59, 352750), (83, 250750), (85, 244850), (118, 176375), (125, 166498), (166, 125375), (170, 122425), (250, 83249), (295, 70550), (415, 50150), (425, 48970), (590, 35275), (830, 25075), (850, 24485), (1003, 20750), (1411, 14750), (1475, 14110), (2006, 10375), (2075, 10030), (2125, 9794), (2822, 7375), (2950, 7055), (4150, 5015), (4250, 4897)]